Commit c2c2fd57 authored by Bruce Momjian's avatar Bruce Momjian

Improve COPY syntax to use WITH clause, keep backward compatibility.

parent 2912fd45
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/keywords.sgml,v 2.5 2002/01/08 15:38:42 tgl Exp $ --> <!-- $Header: /cvsroot/pgsql/doc/src/sgml/keywords.sgml,v 2.6 2002/06/20 16:00:43 momjian Exp $ -->
<appendix id="sql-keywords-appendix"> <appendix id="sql-keywords-appendix">
<title><acronym>SQL</acronym> Key Words</title> <title><acronym>SQL</acronym> Key Words</title>
...@@ -890,6 +890,12 @@ ...@@ -890,6 +890,12 @@
<entry>reserved</entry> <entry>reserved</entry>
<entry>reserved</entry> <entry>reserved</entry>
</row> </row>
<row>
<entry><token>DELIMITER</token></entry>
<entry>non-reserved</entry>
<entry></entry>
<entry></entry>
</row>
<row> <row>
<entry><token>DELIMITERS</token></entry> <entry><token>DELIMITERS</token></entry>
<entry>non-reserved</entry> <entry>non-reserved</entry>
......
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...@@ -7,7 +7,7 @@ ...@@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.156 2002/05/21 22:59:00 tgl Exp $ * $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.157 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -261,18 +261,79 @@ CopyDonePeek(FILE *fp, int c, bool pickup) ...@@ -261,18 +261,79 @@ CopyDonePeek(FILE *fp, int c, bool pickup)
* the table. * the table.
*/ */
void void
DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe, DoCopy(const CopyStmt *stmt)
char *filename, char *delim, char *null_print)
{ {
RangeVar *relation = stmt->relation;
char *filename = stmt->filename;
bool is_from = stmt->is_from;
bool pipe = (stmt->filename == NULL);
List *option;
DefElem *dbinary = NULL;
DefElem *doids = NULL;
DefElem *ddelim = NULL;
DefElem *dnull = NULL;
bool binary = false;
bool oids = false;
char *delim = "\t";
char *null_print = "\\N";
FILE *fp; FILE *fp;
Relation rel; Relation rel;
AclMode required_access = (from ? ACL_INSERT : ACL_SELECT); AclMode required_access = (is_from ? ACL_INSERT : ACL_SELECT);
AclResult aclresult; AclResult aclresult;
/* Extract options from the statement node tree */
foreach(option, stmt->options)
{
DefElem *defel = (DefElem *) lfirst(option);
if (strcmp(defel->defname, "binary") == 0)
{
if (dbinary)
elog(ERROR, "COPY: conflicting options");
dbinary = defel;
}
else if (strcmp(defel->defname, "oids") == 0)
{
if (doids)
elog(ERROR, "COPY: conflicting options");
doids = defel;
}
else if (strcmp(defel->defname, "delimiter") == 0)
{
if (ddelim)
elog(ERROR, "COPY: conflicting options");
ddelim = defel;
}
else if (strcmp(defel->defname, "null") == 0)
{
if (dnull)
elog(ERROR, "COPY: conflicting options");
dnull = defel;
}
else
elog(ERROR, "COPY: option \"%s\" not recognized",
defel->defname);
}
if (dbinary)
binary = intVal(dbinary->arg);
if (doids)
oids = intVal(doids->arg);
if (ddelim)
delim = strVal(ddelim->arg);
if (dnull)
null_print = strVal(dnull->arg);
if (binary && ddelim)
elog(ERROR, "You can not specify the DELIMITER in BINARY mode.");
if (binary && dnull)
elog(ERROR, "You can not specify NULL in BINARY mode.");
/* /*
* Open and lock the relation, using the appropriate lock type. * Open and lock the relation, using the appropriate lock type.
*/ */
rel = heap_openrv(relation, (from ? RowExclusiveLock : AccessShareLock)); rel = heap_openrv(relation, (is_from ? RowExclusiveLock : AccessShareLock));
/* Check permissions. */ /* Check permissions. */
aclresult = pg_class_aclcheck(RelationGetRelid(rel), GetUserId(), aclresult = pg_class_aclcheck(RelationGetRelid(rel), GetUserId(),
...@@ -306,7 +367,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe, ...@@ -306,7 +367,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe,
server_encoding = GetDatabaseEncoding(); server_encoding = GetDatabaseEncoding();
#endif #endif
if (from) if (is_from)
{ /* copy from file to database */ { /* copy from file to database */
if (rel->rd_rel->relkind != RELKIND_RELATION) if (rel->rd_rel->relkind != RELKIND_RELATION)
{ {
...@@ -410,7 +471,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe, ...@@ -410,7 +471,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe,
if (!pipe) if (!pipe)
FreeFile(fp); FreeFile(fp);
else if (!from) else if (!is_from)
{ {
if (!binary) if (!binary)
CopySendData("\\.\n", 3, fp); CopySendData("\\.\n", 3, fp);
...@@ -425,7 +486,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe, ...@@ -425,7 +486,7 @@ DoCopy(const RangeVar *relation, bool binary, bool oids, bool from, bool pipe,
* transaction to ensure that updates will be committed before lock is * transaction to ensure that updates will be committed before lock is
* released. * released.
*/ */
heap_close(rel, (from ? NoLock : AccessShareLock)); heap_close(rel, (is_from ? NoLock : AccessShareLock));
} }
......
...@@ -9,7 +9,7 @@ ...@@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.93 2002/06/18 17:27:57 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.94 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -58,7 +58,7 @@ static bool remove_dbdirs(const char *real_loc, const char *altloc); ...@@ -58,7 +58,7 @@ static bool remove_dbdirs(const char *real_loc, const char *altloc);
*/ */
void void
createdb(CreatedbStmt *stmt) createdb(const CreatedbStmt *stmt)
{ {
char *nominal_loc; char *nominal_loc;
char *alt_loc; char *alt_loc;
......
...@@ -15,7 +15,7 @@ ...@@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.189 2002/06/18 17:27:57 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.190 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -1992,16 +1992,11 @@ _copyCopyStmt(CopyStmt *from) ...@@ -1992,16 +1992,11 @@ _copyCopyStmt(CopyStmt *from)
{ {
CopyStmt *newnode = makeNode(CopyStmt); CopyStmt *newnode = makeNode(CopyStmt);
newnode->binary = from->binary;
Node_Copy(from, newnode, relation); Node_Copy(from, newnode, relation);
newnode->oids = from->oids; newnode->is_from = from->is_from;
newnode->direction = from->direction;
if (from->filename) if (from->filename)
newnode->filename = pstrdup(from->filename); newnode->filename = pstrdup(from->filename);
if (from->delimiter) Node_Copy(from, newnode, options);
newnode->delimiter = pstrdup(from->delimiter);
if (from->null_print)
newnode->null_print = pstrdup(from->null_print);
return newnode; return newnode;
} }
......
...@@ -20,7 +20,7 @@ ...@@ -20,7 +20,7 @@
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.136 2002/06/18 17:27:57 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.137 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -799,19 +799,13 @@ _equalClusterStmt(ClusterStmt *a, ClusterStmt *b) ...@@ -799,19 +799,13 @@ _equalClusterStmt(ClusterStmt *a, ClusterStmt *b)
static bool static bool
_equalCopyStmt(CopyStmt *a, CopyStmt *b) _equalCopyStmt(CopyStmt *a, CopyStmt *b)
{ {
if (a->binary != b->binary)
return false;
if (!equal(a->relation, b->relation)) if (!equal(a->relation, b->relation))
return false; return false;
if (a->oids != b->oids) if (a->is_from != b->is_from)
return false;
if (a->direction != b->direction)
return false; return false;
if (!equalstr(a->filename, b->filename)) if (!equalstr(a->filename, b->filename))
return false; return false;
if (!equalstr(a->delimiter, b->delimiter)) if (!equal(a->options, b->options))
return false;
if (!equalstr(a->null_print, b->null_print))
return false; return false;
return true; return true;
......
...@@ -11,7 +11,7 @@ ...@@ -11,7 +11,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.331 2002/06/19 15:40:58 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.332 2002/06/20 16:00:43 momjian Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
...@@ -159,8 +159,8 @@ static void doNegateFloat(Value *v); ...@@ -159,8 +159,8 @@ static void doNegateFloat(Value *v);
%type <node> alter_column_default %type <node> alter_column_default
%type <ival> add_drop, drop_behavior, opt_drop_behavior %type <ival> add_drop, drop_behavior, opt_drop_behavior
%type <list> createdb_opt_list %type <list> createdb_opt_list, copy_opt_list
%type <defelt> createdb_opt_item %type <defelt> createdb_opt_item, copy_opt_item
%type <ival> opt_lock, lock_type %type <ival> opt_lock, lock_type
%type <boolean> opt_force, opt_or_replace %type <boolean> opt_force, opt_or_replace
...@@ -182,7 +182,7 @@ static void doNegateFloat(Value *v); ...@@ -182,7 +182,7 @@ static void doNegateFloat(Value *v);
%type <str> TriggerEvents %type <str> TriggerEvents
%type <value> TriggerFuncArg %type <value> TriggerFuncArg
%type <str> relation_name, copy_file_name, copy_delimiter, copy_null, %type <str> relation_name, copy_file_name,
database_name, access_method_clause, access_method, attr_name, database_name, access_method_clause, access_method, attr_name,
index_name, name, function_name, file_name index_name, name, function_name, file_name
...@@ -236,11 +236,14 @@ static void doNegateFloat(Value *v); ...@@ -236,11 +236,14 @@ static void doNegateFloat(Value *v);
%type <ival> opt_interval %type <ival> opt_interval
%type <node> overlay_placing, substr_from, substr_for %type <node> overlay_placing, substr_from, substr_for
%type <boolean> opt_binary, opt_instead, opt_cursor %type <boolean> opt_instead, opt_cursor
%type <boolean> opt_with_copy, index_opt_unique, opt_verbose, opt_full %type <boolean> index_opt_unique, opt_verbose, opt_full
%type <boolean> opt_freeze %type <boolean> opt_freeze
%type <defelt> opt_binary, opt_oids, copy_delimiter
%type <ival> copy_dirn, direction, reindex_type, drop_type, %type <boolean> copy_from
%type <ival> direction, reindex_type, drop_type,
opt_column, event, comment_type opt_column, event, comment_type
%type <ival> fetch_how_many %type <ival> fetch_how_many
...@@ -330,8 +333,8 @@ static void doNegateFloat(Value *v); ...@@ -330,8 +333,8 @@ static void doNegateFloat(Value *v);
CURRENT_TIMESTAMP, CURRENT_USER, CURSOR, CYCLE, CURRENT_TIMESTAMP, CURRENT_USER, CURSOR, CYCLE,
DATABASE, DAY_P, DEC, DECIMAL, DECLARE, DEFAULT, DATABASE, DAY_P, DEC, DECIMAL, DECLARE, DEFAULT,
DEFERRABLE, DEFERRED, DEFINER, DELETE_P, DELIMITERS, DESC, DEFERRABLE, DEFERRED, DEFINER, DELETE_P, DELIMITER, DELIMITERS,
DISTINCT, DO, DOMAIN_P, DOUBLE, DROP, DESC, DISTINCT, DO, DOMAIN_P, DOUBLE, DROP,
EACH, ELSE, ENCODING, ENCRYPTED, END_TRANS, ESCAPE, EXCEPT, EACH, ELSE, ENCODING, ENCRYPTED, END_TRANS, ESCAPE, EXCEPT,
EXCLUSIVE, EXECUTE, EXISTS, EXPLAIN, EXTERNAL, EXTRACT, EXCLUSIVE, EXECUTE, EXISTS, EXPLAIN, EXTERNAL, EXTRACT,
...@@ -1293,27 +1296,38 @@ opt_id: ColId { $$ = $1; } ...@@ -1293,27 +1296,38 @@ opt_id: ColId { $$ = $1; }
/***************************************************************************** /*****************************************************************************
* *
* QUERY : * QUERY :
* COPY [BINARY] <relname> FROM/TO * COPY <relname> FROM/TO [WITH options]
* [USING DELIMITERS <delimiter>] *
* BINARY, OIDS, and DELIMITERS kept in old locations
* for backward compatibility. 2002-06-18
* *
*****************************************************************************/ *****************************************************************************/
CopyStmt: COPY opt_binary qualified_name opt_with_copy copy_dirn copy_file_name copy_delimiter copy_null CopyStmt: COPY opt_binary qualified_name opt_oids copy_from
copy_file_name copy_delimiter opt_with copy_opt_list
{ {
CopyStmt *n = makeNode(CopyStmt); CopyStmt *n = makeNode(CopyStmt);
n->binary = $2;
n->relation = $3; n->relation = $3;
n->oids = $4; n->is_from = $5;
n->direction = $5;
n->filename = $6; n->filename = $6;
n->delimiter = $7;
n->null_print = $8; n->options = NIL;
/* Concatenate user-supplied flags */
if ($2)
n->options = lappend(n->options, $2);
if ($4)
n->options = lappend(n->options, $4);
if ($7)
n->options = lappend(n->options, $7);
if ($9)
n->options = nconc(n->options, $9);
$$ = (Node *)n; $$ = (Node *)n;
} }
; ;
copy_dirn: TO { $$ = TO; } copy_from:
| FROM { $$ = FROM; } FROM { $$ = TRUE; }
| TO { $$ = FALSE; }
; ;
/* /*
...@@ -1327,30 +1341,79 @@ copy_file_name: ...@@ -1327,30 +1341,79 @@ copy_file_name:
| STDOUT { $$ = NULL; } | STDOUT { $$ = NULL; }
; ;
opt_binary: BINARY { $$ = TRUE; }
| /*EMPTY*/ { $$ = FALSE; }
copy_opt_list:
copy_opt_list copy_opt_item { $$ = lappend($1, $2); }
| /* EMPTY */ { $$ = NIL; }
; ;
opt_with_copy:
WITH OIDS { $$ = TRUE; } copy_opt_item:
| /*EMPTY*/ { $$ = FALSE; } BINARY
{
$$ = makeNode(DefElem);
$$->defname = "binary";
$$->arg = (Node *)makeInteger(TRUE);
}
| OIDS
{
$$ = makeNode(DefElem);
$$->defname = "oids";
$$->arg = (Node *)makeInteger(TRUE);
}
| DELIMITER opt_as Sconst
{
$$ = makeNode(DefElem);
$$->defname = "delimiter";
$$->arg = (Node *)makeString($3);
}
| NULL_P opt_as Sconst
{
$$ = makeNode(DefElem);
$$->defname = "null";
$$->arg = (Node *)makeString($3);
}
;
/* The following exist for backward compatibility */
opt_binary:
BINARY
{
$$ = makeNode(DefElem);
$$->defname = "binary";
$$->arg = (Node *)makeInteger(TRUE);
}
| /*EMPTY*/ { $$ = NULL; }
;
opt_oids:
WITH OIDS
{
$$ = makeNode(DefElem);
$$->defname = "oids";
$$->arg = (Node *)makeInteger(TRUE);
}
| /*EMPTY*/ { $$ = NULL; }
; ;
/*
* the default copy delimiter is tab but the user can configure it
*/
copy_delimiter: copy_delimiter:
opt_using DELIMITERS Sconst { $$ = $3; } /* USING DELIMITERS kept for backward compatibility. 2002-06-15 */
| /*EMPTY*/ { $$ = "\t"; } opt_using DELIMITERS Sconst
{
$$ = makeNode(DefElem);
$$->defname = "delimiter";
$$->arg = (Node *)makeString($3);
}
| /*EMPTY*/ { $$ = NULL; }
; ;
opt_using: USING {} opt_using:
USING {}
| /*EMPTY*/ {} | /*EMPTY*/ {}
; ;
copy_null: WITH NULL_P AS Sconst { $$ = $4; }
| /*EMPTY*/ { $$ = "\\N"; }
;
/***************************************************************************** /*****************************************************************************
* *
...@@ -3422,10 +3485,6 @@ createdb_opt_list: ...@@ -3422,10 +3485,6 @@ createdb_opt_list:
| /* EMPTY */ { $$ = NIL; } | /* EMPTY */ { $$ = NIL; }
; ;
/*
* createdb_opt_item returns 2-element lists, with the first element
* being an integer code to indicate which item was specified.
*/
createdb_opt_item: createdb_opt_item:
LOCATION opt_equal Sconst LOCATION opt_equal Sconst
{ {
...@@ -6529,6 +6588,7 @@ unreserved_keyword: ...@@ -6529,6 +6588,7 @@ unreserved_keyword:
| DEFERRED | DEFERRED
| DEFINER | DEFINER
| DELETE_P | DELETE_P
| DELIMITER
| DELIMITERS | DELIMITERS
| DOMAIN_P | DOMAIN_P
| DOUBLE | DOUBLE
......
...@@ -8,7 +8,7 @@ ...@@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.114 2002/06/15 03:00:03 thomas Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.115 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -98,6 +98,7 @@ static const ScanKeyword ScanKeywords[] = { ...@@ -98,6 +98,7 @@ static const ScanKeyword ScanKeywords[] = {
{"deferred", DEFERRED}, {"deferred", DEFERRED},
{"definer", DEFINER}, {"definer", DEFINER},
{"delete", DELETE_P}, {"delete", DELETE_P},
{"delimiter", DELIMITER},
{"delimiters", DELIMITERS}, {"delimiters", DELIMITERS},
{"desc", DESC}, {"desc", DESC},
{"distinct", DISTINCT}, {"distinct", DISTINCT},
......
...@@ -10,7 +10,7 @@ ...@@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.157 2002/06/18 17:27:58 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.158 2002/06/20 16:00:43 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -347,22 +347,10 @@ ProcessUtility(Node *parsetree, ...@@ -347,22 +347,10 @@ ProcessUtility(Node *parsetree,
{ {
CopyStmt *stmt = (CopyStmt *) parsetree; CopyStmt *stmt = (CopyStmt *) parsetree;
if (stmt->direction != FROM) if (!stmt->is_from)
SetQuerySnapshot(); SetQuerySnapshot();
DoCopy(stmt->relation, DoCopy(stmt);
stmt->binary,
stmt->oids,
(bool) (stmt->direction == FROM),
(bool) (stmt->filename == NULL),
/*
* null filename means copy to/from stdout/stdin, rather
* than to/from a file.
*/
stmt->filename,
stmt->delimiter,
stmt->null_print);
} }
break; break;
......
...@@ -29,7 +29,7 @@ a text file named <samp>newref.txt</samp> that starts like this:<p> ...@@ -29,7 +29,7 @@ a text file named <samp>newref.txt</samp> that starts like this:<p>
Notice that there are two consecutive tildes to allow for the fact that this Notice that there are two consecutive tildes to allow for the fact that this
particular entry doesn't have anything in the <b>Editor</b> field. particular entry doesn't have anything in the <b>Editor</b> field.
You can then perform a <em>Query</em> as follows:<p> You can then perform a <em>Query</em> as follows:<p>
<samp>COPY psyref FROM '/home/jim/newref.txt' USING DELIMITERS <samp>COPY psyref FROM '/home/jim/newref.txt' WITH DELIMITER
'~';</samp><p> '~';</samp><p>
This will read the records from <samp>newref.txt</samp> and insert them into the This will read the records from <samp>newref.txt</samp> and insert them into the
table <samp>psyref</samp>. See the PostgreSQL documentation under the headings table <samp>psyref</samp>. See the PostgreSQL documentation under the headings
......
...@@ -5,10 +5,10 @@ and the name must be specified from the viewpoint of the backend. If stdin or st ...@@ -5,10 +5,10 @@ and the name must be specified from the viewpoint of the backend. If stdin or st
" {} " " {} "
COPY \[ BINARY \] table \[ WITH OIDS \] COPY \[ BINARY \] table \[ WITH OIDS \]
FROM { 'filename' | stdin } FROM { 'filename' | stdin }
\[ USING DELIMITERS 'delimiter' \] \[ WITH DELIMITER 'delimiter' \]
COPY \[ BINARY \] table \[ WITH OIDS \] COPY \[ BINARY \] table \[ WITH OIDS \]
TO { 'filename' | stdout } TO { 'filename' | stdout }
\[ USING DELIMITERS 'delimiter' \] \[ WITH DELIMITER 'delimiter' \]
" {code} "Inputs" {bold} " " {code} "Inputs" {bold} "
...@@ -44,7 +44,7 @@ COPY \[ BINARY \] table \[ WITH OIDS \] ...@@ -44,7 +44,7 @@ COPY \[ BINARY \] table \[ WITH OIDS \]
" {} "Usage" {bold} " " {} "Usage" {bold} "
The following example copies a table to standard output, using a vertical bar \(\"|\"\) as the field delimiter: The following example copies a table to standard output, using a vertical bar \(\"|\"\) as the field delimiter:
COPY country TO stdout USING DELIMITERS '|'; COPY country TO stdout WITH DELIMITER '|';
To copy data from a Unix file into a table \"country\": To copy data from a Unix file into a table \"country\":
COPY country FROM '/usr1/proj/bray/sql/country_data'; COPY country FROM '/usr1/proj/bray/sql/country_data';
...@@ -93,13 +93,12 @@ The format for each instance in the file is as follows. Note that this format mu ...@@ -93,13 +93,12 @@ The format for each instance in the file is as follows. Note that this format mu
The " {} "BINARY" {bold} " keyword will force all data to be stored/read as binary objects rather than as text. It is somewhat faster than the normal copy command, but is not generally portable, and the files \ The " {} "BINARY" {bold} " keyword will force all data to be stored/read as binary objects rather than as text. It is somewhat faster than the normal copy command, but is not generally portable, and the files \
generated are somewhat larger, although this factor is highly dependent on the data itself. By default, a text copy uses a tab \ generated are somewhat larger, although this factor is highly dependent on the data itself. By default, a text copy uses a tab \
\(\"\\t\"\) character as a delimiter. The delimiter may also be changed to any other single character with the keyword phrase USING DELIMITERS. Characters in data fields which happen to match the delimiter character will be quoted. \(\"\\t\"\) character as a delimiter. The delimiter may also be changed to any other single character with the keyword phrase WITH DELIMITER. Characters in data fields which happen to match the delimiter character will be quoted.
You must have select access on any table whose values are read by " {} "COPY" {bold} ", and either insert or update access to a table into which values are being inserted by \ You must have select access on any table whose values are read by " {} "COPY" {bold} ", and either insert or update access to a table into which values are being inserted by \
" {} "COPY" {bold} ". The backend also needs appropriate Unix permissions for any file read or written by \ " {} "COPY" {bold} ". The backend also needs appropriate Unix permissions for any file read or written by \
" {} "COPY" {bold} ". " {} "COPY" {bold} ".
The keyword phrase " {} "USING DELIMITERS" {bold} " specifies a single character to be used for all delimiters between columns. If multiple characters are specified in the delimiter string, only the first \ The keyword phrase " {} "WITH DELIMITER" {bold} " specifies a single character to be used for all delimiters between columns.
character is used.
Tip: Do not confuse " {} "COPY" {bold} " with the psql instruction \\copy. " Tip: Do not confuse " {} "COPY" {bold} " with the psql instruction \\copy. "
...@@ -636,6 +636,8 @@ proc vTclWindow.pgaw:ImportExport {base} { ...@@ -636,6 +636,8 @@ proc vTclWindow.pgaw:ImportExport {base} {
if {$PgAcVar(impexp,delimiter)==""} { if {$PgAcVar(impexp,delimiter)==""} {
set sup "" set sup ""
} else { } else {
# now we use WITH DELIMITER, but keep old syntax for
# backward compatibility. 2002-06-15
set sup " USING DELIMITERS '$PgAcVar(impexp,delimiter)'" set sup " USING DELIMITERS '$PgAcVar(impexp,delimiter)'"
} }
if {[.pgaw:ImportExport.expbtn cget -text]=="Import"} { if {[.pgaw:ImportExport.expbtn cget -text]=="Import"} {
......
...@@ -3,7 +3,7 @@ ...@@ -3,7 +3,7 @@
* *
* Copyright 2000 by PostgreSQL Global Development Group * Copyright 2000 by PostgreSQL Global Development Group
* *
* $Header: /cvsroot/pgsql/src/bin/psql/copy.c,v 1.22 2002/04/24 21:00:10 petere Exp $ * $Header: /cvsroot/pgsql/src/bin/psql/copy.c,v 1.23 2002/06/20 16:00:44 momjian Exp $
*/ */
#include "postgres_fe.h" #include "postgres_fe.h"
#include "copy.h" #include "copy.h"
...@@ -36,9 +36,12 @@ bool copy_in_state; ...@@ -36,9 +36,12 @@ bool copy_in_state;
* parse_slash_copy * parse_slash_copy
* -- parses \copy command line * -- parses \copy command line
* *
* Accepted syntax: \copy [binary] table|"table" [with oids] from|to filename|'filename' [ using delimiters '<char>'] [ with null as 'string' ] * Accepted syntax: \copy table|"table" [with oids] from|to filename|'filename' [with ] [ oids ] [ delimiter '<char>'] [ null as 'string' ]
* (binary is not here yet) * (binary is not here yet)
* *
* Old syntax for backward compatibility: (2002-06-19):
* \copy table|"table" [with oids] from|to filename|'filename' [ using delimiters '<char>'] [ with null as 'string' ]
*
* returns a malloc'ed structure with the options, or NULL on parsing error * returns a malloc'ed structure with the options, or NULL on parsing error
*/ */
...@@ -120,6 +123,7 @@ parse_slash_copy(const char *args) ...@@ -120,6 +123,7 @@ parse_slash_copy(const char *args)
error = true; error = true;
else else
{ {
/* Allows old COPY syntax for backward compatibility 2002-06-19 */
if (strcasecmp(token, "with") == 0) if (strcasecmp(token, "with") == 0)
{ {
token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding); token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding);
...@@ -161,12 +165,11 @@ parse_slash_copy(const char *args) ...@@ -161,12 +165,11 @@ parse_slash_copy(const char *args)
token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding); token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding);
if (token) if (token)
{ {
/* Allows old COPY syntax for backward compatibility 2002-06-19 */
if (strcasecmp(token, "using") == 0) if (strcasecmp(token, "using") == 0)
{ {
token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding); token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding);
if (!token || strcasecmp(token, "delimiters") != 0) if (token && strcasecmp(token, "delimiters") == 0)
error = true;
else
{ {
token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding); token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (token) if (token)
...@@ -177,32 +180,42 @@ parse_slash_copy(const char *args) ...@@ -177,32 +180,42 @@ parse_slash_copy(const char *args)
else else
error = true; error = true;
} }
else
error = true;
} }
}
}
if (!error && token) if (!error && token)
{
if (strcasecmp(token, "with") == 0)
{
while (!error && (token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding)))
{ {
if (strcasecmp(token, "with") == 0) if (strcasecmp(token, "delimiter") == 0)
{ {
token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding); token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (!token || strcasecmp(token, "null") != 0) if (token && strcasecmp(token, "as") == 0)
token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (token)
result->delim = xstrdup(token);
else
error = true; error = true;
}
else if (strcasecmp(token, "null") == 0)
{
token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (token && strcasecmp(token, "as") == 0)
token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (token)
result->null = xstrdup(token);
else else
{ error = true;
token = strtokx(NULL, " \t\n\r", NULL, '\\', NULL, NULL, pset.encoding);
if (!token || strcasecmp(token, "as") != 0)
error = true;
else
{
token = strtokx(NULL, " \t\n\r", "'", '\\', NULL, NULL, pset.encoding);
if (token)
result->null = xstrdup(token);
}
}
} }
else else error = true;
error = true;
} }
} }
else error = true;
} }
free(line); free(line);
...@@ -250,6 +263,7 @@ do_copy(const char *args) ...@@ -250,6 +263,7 @@ do_copy(const char *args)
appendPQExpBuffer(&query, "BINARY "); appendPQExpBuffer(&query, "BINARY ");
appendPQExpBuffer(&query, "\"%s\" ", options->table); appendPQExpBuffer(&query, "\"%s\" ", options->table);
/* Uses old COPY syntax for backward compatibility 2002-06-19 */
if (options->oids) if (options->oids)
appendPQExpBuffer(&query, "WITH OIDS "); appendPQExpBuffer(&query, "WITH OIDS ");
...@@ -259,6 +273,7 @@ do_copy(const char *args) ...@@ -259,6 +273,7 @@ do_copy(const char *args)
appendPQExpBuffer(&query, "TO STDOUT"); appendPQExpBuffer(&query, "TO STDOUT");
/* Uses old COPY syntax for backward compatibility 2002-06-19 */
if (options->delim) if (options->delim)
appendPQExpBuffer(&query, " USING DELIMITERS '%s'", options->delim); appendPQExpBuffer(&query, " USING DELIMITERS '%s'", options->delim);
...@@ -298,7 +313,7 @@ do_copy(const char *args) ...@@ -298,7 +313,7 @@ do_copy(const char *args)
free_copy_options(options); free_copy_options(options);
return false; return false;
} }
result = PSQLexec(query.data); result = PSQLexec(query.data);
termPQExpBuffer(&query); termPQExpBuffer(&query);
......
...@@ -7,19 +7,18 @@ ...@@ -7,19 +7,18 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $Id: copy.h,v 1.17 2002/03/29 19:06:21 tgl Exp $ * $Id: copy.h,v 1.18 2002/06/20 16:00:44 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
#ifndef COPY_H #ifndef COPY_H
#define COPY_H #define COPY_H
#include "nodes/parsenodes.h"
#include "nodes/primnodes.h" #include "nodes/primnodes.h"
extern int copy_lineno; extern int copy_lineno;
void DoCopy(const RangeVar *relation, bool binary, bool oids, void DoCopy(const CopyStmt *stmt);
bool from, bool pipe,
char *filename, char *delim, char *null_print);
#endif /* COPY_H */ #endif /* COPY_H */
...@@ -7,7 +7,7 @@ ...@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $Id: dbcommands.h,v 1.22 2002/06/18 17:27:58 momjian Exp $ * $Id: dbcommands.h,v 1.23 2002/06/20 16:00:44 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -16,7 +16,7 @@ ...@@ -16,7 +16,7 @@
#include <nodes/parsenodes.h> #include <nodes/parsenodes.h>
extern void createdb(CreatedbStmt *stmt); extern void createdb(const CreatedbStmt *stmt);
extern void dropdb(const char *dbname); extern void dropdb(const char *dbname);
extern void AlterDatabaseSet(AlterDatabaseSetStmt *stmt); extern void AlterDatabaseSet(AlterDatabaseSetStmt *stmt);
......
...@@ -7,7 +7,7 @@ ...@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $Id: parsenodes.h,v 1.180 2002/06/18 17:27:58 momjian Exp $ * $Id: parsenodes.h,v 1.181 2002/06/20 16:00:44 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -851,13 +851,10 @@ typedef struct ClosePortalStmt ...@@ -851,13 +851,10 @@ typedef struct ClosePortalStmt
typedef struct CopyStmt typedef struct CopyStmt
{ {
NodeTag type; NodeTag type;
bool binary; /* is a binary copy? */
RangeVar *relation; /* the relation to copy */ RangeVar *relation; /* the relation to copy */
bool oids; /* copy oid's? */ bool is_from; /* TO or FROM */
int direction; /* TO or FROM */
char *filename; /* if NULL, use stdin/stdout */ char *filename; /* if NULL, use stdin/stdout */
char *delimiter; /* delimiter character, \t by default */ List *options; /* List of DefElem nodes */
char *null_print; /* how to print NULLs, `\N' by default */
} CopyStmt; } CopyStmt;
/* ---------------------- /* ----------------------
......
...@@ -13,7 +13,7 @@ import org.postgresql.util.PSQLException; ...@@ -13,7 +13,7 @@ import org.postgresql.util.PSQLException;
/* /*
* This class provides information about the database as a whole. * This class provides information about the database as a whole.
* *
* $Id: DatabaseMetaData.java,v 1.46 2002/06/11 02:55:16 barry Exp $ * $Id: DatabaseMetaData.java,v 1.47 2002/06/20 16:00:44 momjian Exp $
* *
* <p>Many of the methods here return lists of information in ResultSets. You * <p>Many of the methods here return lists of information in ResultSets. You
* can use the normal ResultSet methods such as getString and getInt to * can use the normal ResultSet methods such as getString and getInt to
...@@ -370,7 +370,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData ...@@ -370,7 +370,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
*/ */
public String getSQLKeywords() throws SQLException public String getSQLKeywords() throws SQLException
{ {
return "abort,acl,add,aggregate,append,archive,arch_store,backward,binary,change,cluster,copy,database,delimiters,do,extend,explain,forward,heavy,index,inherits,isnull,light,listen,load,merge,nothing,notify,notnull,oids,purge,rename,replace,retrieve,returns,rule,recipe,setof,stdin,stdout,store,vacuum,verbose,version"; return "abort,acl,add,aggregate,append,archive,arch_store,backward,binary,change,cluster,copy,database,delimiter,delimiters,do,extend,explain,forward,heavy,index,inherits,isnull,light,listen,load,merge,nothing,notify,notnull,oids,purge,rename,replace,retrieve,returns,rule,recipe,setof,stdin,stdout,store,vacuum,verbose,version";
} }
public String getNumericFunctions() throws SQLException public String getNumericFunctions() throws SQLException
......
...@@ -15,7 +15,7 @@ import org.postgresql.util.PSQLException; ...@@ -15,7 +15,7 @@ import org.postgresql.util.PSQLException;
/* /*
* This class provides information about the database as a whole. * This class provides information about the database as a whole.
* *
* $Id: DatabaseMetaData.java,v 1.55 2002/06/11 02:55:16 barry Exp $ * $Id: DatabaseMetaData.java,v 1.56 2002/06/20 16:00:44 momjian Exp $
* *
* <p>Many of the methods here return lists of information in ResultSets. You * <p>Many of the methods here return lists of information in ResultSets. You
* can use the normal ResultSet methods such as getString and getInt to * can use the normal ResultSet methods such as getString and getInt to
...@@ -409,7 +409,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData ...@@ -409,7 +409,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
public String getSQLKeywords() throws SQLException public String getSQLKeywords() throws SQLException
{ {
if (Driver.logDebug) Driver.debug("getSQLKeyWords"); if (Driver.logDebug) Driver.debug("getSQLKeyWords");
return "abort,acl,add,aggregate,append,archive,arch_store,backward,binary,change,cluster,copy,database,delimiters,do,extend,explain,forward,heavy,index,inherits,isnull,light,listen,load,merge,nothing,notify,notnull,oids,purge,rename,replace,retrieve,returns,rule,recipe,setof,stdin,stdout,store,vacuum,verbose,version"; return "abort,acl,add,aggregate,append,archive,arch_store,backward,binary,change,cluster,copy,database,delimiter,delimiters,do,extend,explain,forward,heavy,index,inherits,isnull,light,listen,load,merge,nothing,notify,notnull,oids,purge,rename,replace,retrieve,returns,rule,recipe,setof,stdin,stdout,store,vacuum,verbose,version";
} }
public String getNumericFunctions() throws SQLException public String getNumericFunctions() throws SQLException
......
COPY wordlist FROM stdin USING DELIMITERS '|'; COPY wordlist FROM stdin WITH DELIMITER '|';
AAA | AAA |
AAAAa | AAAAa |
BBBB |BBBB BBBB |BBBB
......
COPY wordlist FROM stdin USING DELIMITERS '|'; COPY wordlist FROM stdin WITH DELIMITER '|';
AAA | AAA |
AAAAa | AAAAa |
BBBB |BBBB BBBB |BBBB
......
COPY usastates FROM stdin USING DELIMITERS '|'; COPY usastates FROM stdin WITH DELIMITER '|';
AK|Alaska | AK|Alaska |
WA|Washington | WA|Washington |
OR|Oregon | OR|Oregon |
......
COPY usastates FROM stdin USING DELIMITERS '|'; COPY usastates FROM stdin WITH DELIMITER '|';
AK|Alaska | AK|Alaska |
WA|Washington | WA|Washington |
OR|Oregon | OR|Oregon |
......
COPY usastates FROM stdin USING DELIMITERS '|'; COPY usastates FROM stdin WITH DELIMITER '|';
AK|Alaska | AK|Alaska |
WA|Washington | WA|Washington |
OR|Oregon | OR|Oregon |
......
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