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Add a RESTART (without parameter) option to ALTER SEQUENCE, allowing a

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sequence to be reset to its original starting value.  This requires adding the
original start value to the set of parameters (columns) of a sequence object,
which is a user-visible change with potential compatibility implications;
it also forces initdb.

Also add hopefully-SQL-compatible RESTART/CONTINUE IDENTITY options to
TRUNCATE TABLE.  RESTART IDENTITY executes ALTER SEQUENCE RESTART for all
sequences "owned by" any of the truncated relations.  CONTINUE IDENTITY is
a no-op option.

Zoltan Boszormenyi
This commit is contained in:
Tom Lane
2008-05-16 23:36:05 +00:00
parent 8a2f5d221b
commit 10a3471bed
18 changed files with 513 additions and 106 deletions
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4
src/backend/parser/keywords.c
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.195 2008/03/27 03:57:33 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.196 2008/05/16 23:36:05 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -101,6 +101,7 @@ static const ScanKeyword ScanKeywords[] = {
{"constraint", CONSTRAINT, RESERVED_KEYWORD},
{"constraints", CONSTRAINTS, UNRESERVED_KEYWORD},
{"content", CONTENT_P, UNRESERVED_KEYWORD},
{"continue", CONTINUE_P, UNRESERVED_KEYWORD},
{"conversion", CONVERSION_P, UNRESERVED_KEYWORD},
{"copy", COPY, UNRESERVED_KEYWORD},
{"cost", COST, UNRESERVED_KEYWORD},
@@ -181,6 +182,7 @@ static const ScanKeyword ScanKeywords[] = {
{"header", HEADER_P, UNRESERVED_KEYWORD},
{"hold", HOLD, UNRESERVED_KEYWORD},
{"hour", HOUR_P, UNRESERVED_KEYWORD},
{"identity", IDENTITY_P, UNRESERVED_KEYWORD},
{"if", IF_P, UNRESERVED_KEYWORD},
{"ilike", ILIKE, TYPE_FUNC_NAME_KEYWORD},
{"immediate", IMMEDIATE, UNRESERVED_KEYWORD},