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Basic foreign table support.

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Foreign tables are a core component of SQL/MED.  This commit does
not provide a working SQL/MED infrastructure, because foreign tables
cannot yet be queried.  Support for foreign table scans will need to
be added in a future patch.  However, this patch creates the necessary
system catalog structure, syntax support, and support for ancillary
operations such as COMMENT and SECURITY LABEL.

Shigeru Hanada, heavily revised by Robert Haas
This commit is contained in:
Robert Haas
2011-01-01 23:48:11 -05:00
parent 6600d5e91c
commit 0d692a0dc9
69 changed files with 2275 additions and 211 deletions
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7
src/backend/parser/parse_utilcmd.c
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@ -65,7 +65,7 @@
/* State shared by transformCreateStmt and its subroutines */
typedef struct
{
const char *stmtType; /* "CREATE TABLE" or "ALTER TABLE" */
const char *stmtType; /* "CREATE [FOREIGN] TABLE" or "ALTER TABLE" */
RangeVar *relation; /* relation to create */
Relation rel; /* opened/locked rel, if ALTER */
List *inhRelations; /* relations to inherit from */
@ -173,7 +173,10 @@ transformCreateStmt(CreateStmt *stmt, const char *queryString)
pstate = make_parsestate(NULL);
pstate->p_sourcetext = queryString;
cxt.stmtType = "CREATE TABLE";
if (IsA(stmt, CreateForeignTableStmt))
cxt.stmtType = "CREATE FOREIGN TABLE";
else
cxt.stmtType = "CREATE TABLE";
cxt.relation = stmt->relation;
cxt.rel = NULL;
cxt.inhRelations = stmt->inhRelations;