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Implement IMPORT FOREIGN SCHEMA.

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This command provides an automated way to create foreign table definitions
that match remote tables, thereby reducing tedium and chances for error.
In this patch, we provide the necessary core-server infrastructure and
implement the feature fully in the postgres_fdw foreign-data wrapper.
Other wrappers will throw a "feature not supported" error until/unless
they are updated.

Ronan Dunklau and Michael Paquier, additional work by me
This commit is contained in:
Tom Lane
2014-07-10 15:01:31 -04:00
parent 6a605cd6bd
commit 59efda3e50
29 changed files with 1239 additions and 15 deletions
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18
src/backend/nodes/copyfuncs.c
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@@ -3567,6 +3567,21 @@ _copyCreateForeignTableStmt(const CreateForeignTableStmt *from)
return newnode;
}
static ImportForeignSchemaStmt *
_copyImportForeignSchemaStmt(const ImportForeignSchemaStmt *from)
{
ImportForeignSchemaStmt *newnode = makeNode(ImportForeignSchemaStmt);
COPY_STRING_FIELD(server_name);
COPY_STRING_FIELD(remote_schema);
COPY_STRING_FIELD(local_schema);
COPY_SCALAR_FIELD(list_type);
COPY_NODE_FIELD(table_list);
COPY_NODE_FIELD(options);
return newnode;
}
static CreateTrigStmt *
_copyCreateTrigStmt(const CreateTrigStmt *from)
{
@@ -4477,6 +4492,9 @@ copyObject(const void *from)
case T_CreateForeignTableStmt:
retval = _copyCreateForeignTableStmt(from);
break;
case T_ImportForeignSchemaStmt:
retval = _copyImportForeignSchemaStmt(from);
break;
case T_CreateTrigStmt:
retval = _copyCreateTrigStmt(from);
break;