farrokhi/pg_repack
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Added implementation for --moveidx

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Note: if original namespace is "foo bar", repack_indexdef gives a bad
result. This is weird as apparently skip_ident can deal with spaces in
a quoted identifier. Committing as I'm going home, will deal with that
later.
This commit is contained in:
Daniele Varrazzo
2013-04-16 20:17:51 +01:00
parent 43dfe229c9
commit 83fdb2a9e0
3 changed files with 53 additions and 9 deletions
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4
lib/pg_repack.sql.in
View File

@ -207,9 +207,9 @@ CREATE VIEW repack.tables AS
AND N.nspname NOT IN ('pg_catalog', 'information_schema')
AND N.nspname NOT LIKE E'pg\\_temp\\_%';
CREATE FUNCTION repack.repack_indexdef(oid, oid) RETURNS text AS
CREATE FUNCTION repack.repack_indexdef(oid, oid, name) RETURNS text AS
'MODULE_PATHNAME', 'repack_indexdef'
LANGUAGE C STABLE STRICT;
LANGUAGE C STABLE;
CREATE FUNCTION repack.repack_trigger() RETURNS trigger AS
'MODULE_PATHNAME', 'repack_trigger'

50
lib/repack.c
View File

@ -618,20 +618,62 @@ repack_get_order_by(PG_FUNCTION_ARGS)
*
* @param index Oid of target index.
* @param table Oid of table of the index.
* @param tablespace Namespace for the index. If NULL keep the original.
* @retval Create index DDL for temp table.
*/
Datum
repack_indexdef(PG_FUNCTION_ARGS)
{
Oid index = PG_GETARG_OID(0);
Oid table = PG_GETARG_OID(1);
Oid index;
Oid table;
Name tablespace = NULL;
IndexDef stmt;
StringInfoData str;
if (PG_ARGISNULL(0) || PG_ARGISNULL(1))
PG_RETURN_NULL();
index = PG_GETARG_OID(0);
table = PG_GETARG_OID(1);
if (!PG_ARGISNULL(2))
tablespace = PG_GETARG_NAME(2);
parse_indexdef(&stmt, index, table);
initStringInfo(&str);
appendStringInfo(&str, "%s index_%u ON repack.table_%u USING %s (%s)%s",
stmt.create, index, table, stmt.type, stmt.columns, stmt.options);
appendStringInfo(&str, "%s index_%u ON repack.table_%u USING %s (%s)",
stmt.create, index, table, stmt.type, stmt.columns);
/* Replace the tablespace in the index options */
if (tablespace == NULL)
{
/* tablespace is just fine */
appendStringInfoString(&str, stmt.options);
}
else
{
const char *pos;
if (NULL == (pos = strstr(stmt.options, " TABLESPACE ")))
{
/* tablespace is to append */
appendStringInfoString(&str, " TABLESPACE ");
appendStringInfoString(&str, NameStr(*tablespace));
}
else
{
char *tmp;
/* tablespace is to replace */
tmp = skip_const(index, stmt.options, " TABLESPACE ", NULL);
appendStringInfoString(&str, stmt.options);
appendStringInfoString(&str, NameStr(*tablespace));
/* FIXME: not working if original ts has a space. But skip_ident
* should deal with that. Stupid mistake somewhere? */
tmp = skip_ident(index, tmp);
appendStringInfoString(&str, tmp);
}
}
PG_RETURN_TEXT_P(cstring_to_text(str.data));
}