Error position support for partition specifications

Add support for error position reporting for partition specifications.
Reviewed-by: Fabien COELHO <coelho@cri.ensmp.fr>

src/backend/commands/tablecmds.c

@@ -478,7 +478,7 @@ static void RangeVarCallbackForDropRelation(const RangeVar *rel, Oid relOid,
 static void RangeVarCallbackForAlterRelation(const RangeVar *rv, Oid relid,
 								 Oid oldrelid, void *arg);
 static PartitionSpec *transformPartitionSpec(Relation rel, PartitionSpec *partspec, char *strategy);
-static void ComputePartitionAttrs(Relation rel, List *partParams, AttrNumber *partattrs,
+static void ComputePartitionAttrs(ParseState *pstate, Relation rel, List *partParams, AttrNumber *partattrs,
 					  List **partexprs, Oid *partopclass, Oid *partcollation, char strategy);
 static void CreateInheritance(Relation child_rel, Relation parent_rel);
 static void RemoveInheritance(Relation child_rel, Relation parent_rel);
@@ -875,6 +875,7 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
 	 */
 	if (stmt->partspec)
 	{
+		ParseState *pstate;
 		char		strategy;
 		int			partnatts;
 		AttrNumber	partattrs[PARTITION_MAX_KEYS];
@@ -882,6 +883,9 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
 		Oid			partcollation[PARTITION_MAX_KEYS];
 		List	   *partexprs = NIL;
 
+		pstate = make_parsestate(NULL);
+		pstate->p_sourcetext = queryString;
+
 		partnatts = list_length(stmt->partspec->partParams);
 
 		/* Protect fixed-size arrays here and in executor */
@@ -900,7 +904,7 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
 		stmt->partspec = transformPartitionSpec(rel, stmt->partspec,
 												&strategy);
 
-		ComputePartitionAttrs(rel, stmt->partspec->partParams,
+		ComputePartitionAttrs(pstate, rel, stmt->partspec->partParams,
 							  partattrs, &partexprs, partopclass,
 							  partcollation, strategy);
 
@@ -13695,7 +13699,7 @@ transformPartitionSpec(Relation rel, PartitionSpec *partspec, char *strategy)
  * Expressions in the PartitionElems must be parse-analyzed already.
  */
 static void
-ComputePartitionAttrs(Relation rel, List *partParams, AttrNumber *partattrs,
+ComputePartitionAttrs(ParseState *pstate, Relation rel, List *partParams, AttrNumber *partattrs,
 					  List **partexprs, Oid *partopclass, Oid *partcollation,
 					  char strategy)
 {
@@ -13722,14 +13726,16 @@ ComputePartitionAttrs(Relation rel, List *partParams, AttrNumber *partattrs,
 				ereport(ERROR,
 						(errcode(ERRCODE_UNDEFINED_COLUMN),
 						 errmsg("column \"%s\" named in partition key does not exist",
-								pelem->name)));
+								pelem->name),
+						 parser_errposition(pstate, pelem->location)));
 			attform = (Form_pg_attribute) GETSTRUCT(atttuple);
 
 			if (attform->attnum <= 0)
 				ereport(ERROR,
 						(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
 						 errmsg("cannot use system column \"%s\" in partition key",
-								pelem->name)));
+								pelem->name),
+						 parser_errposition(pstate, pelem->location)));
 
 			partattrs[attn] = attform->attnum;
 			atttype = attform->atttypid;

src/test/regress/expected/create_table.out

@@ -328,11 +328,15 @@ CREATE TABLE partitioned (
 	a int
 ) PARTITION BY RANGE (b);
 ERROR:  column "b" named in partition key does not exist
+LINE 3: ) PARTITION BY RANGE (b);
+                              ^
 -- cannot use system columns in partition key
 CREATE TABLE partitioned (
 	a int
 ) PARTITION BY RANGE (xmin);
 ERROR:  cannot use system column "xmin" in partition key
+LINE 3: ) PARTITION BY RANGE (xmin);
+                              ^
 -- functions in key must be immutable
 CREATE FUNCTION immut_func (a int) RETURNS int AS $$ SELECT a + random()::int; $$ LANGUAGE SQL;
 CREATE TABLE partitioned (
@@ -719,6 +723,8 @@ SELECT conislocal, coninhcount FROM pg_constraint WHERE conrelid = 'part_b'::reg
 -- specify PARTITION BY for a partition
 CREATE TABLE fail_part_col_not_found PARTITION OF parted FOR VALUES IN ('c') PARTITION BY RANGE (c);
 ERROR:  column "c" named in partition key does not exist
+LINE 1: ...TITION OF parted FOR VALUES IN ('c') PARTITION BY RANGE (c);
+                                                                    ^
 CREATE TABLE part_c PARTITION OF parted (b WITH OPTIONS NOT NULL DEFAULT 0) FOR VALUES IN ('c') PARTITION BY RANGE ((b));
 -- create a level-2 partition
 CREATE TABLE part_c_1_10 PARTITION OF part_c FOR VALUES FROM (1) TO (10);