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TOAST

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WARNING: This is actually broken - we have self-deadlocks
	         due to concurrent changes in buffer management.
			 Vadim and me are working on it.

Jan
This commit is contained in:
Jan Wieck
2000-07-03 23:10:14 +00:00
parent ef5bea51e1
commit 57d8080a40
43 changed files with 1638 additions and 445 deletions
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30
src/backend/commands/define.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.43 2000/05/28 17:55:55 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.44 2000/07/03 23:09:33 wieck Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@ -597,6 +597,7 @@ DefineType(char *typeName, List *parameters)
char *shadow_type;
List *pl;
char alignment = 'i';/* default alignment */
char storage = 'p'; /* default storage in TOAST */
/*
* Type names can only be 15 characters long, so that the shadow type
@ -650,6 +651,24 @@ DefineType(char *typeName, List *parameters)
a);
}
}
else if (!strcasecmp(defel->defname, "storage"))
{
char *a = defGetString(defel);
if (!strcasecmp(a, "plain"))
storage = 'p';
else if (!strcasecmp(a, "external"))
storage = 'e';
else if (!strcasecmp(a, "extended"))
storage = 'x';
else if (!strcasecmp(a, "main"))
storage = 'm';
else
{
elog(ERROR, "DefineType: \"%s\" storage not recognized",
a);
}
}
else
{
elog(NOTICE, "DefineType: attribute \"%s\" not recognized",
@ -665,6 +684,9 @@ DefineType(char *typeName, List *parameters)
if (outputName == NULL)
elog(ERROR, "Define: \"output\" unspecified");
if (internalLength != -1 && storage != 'p')
elog(ERROR, "Define: fixed size types must have storage PLAIN");
/* ----------------
* now have TypeCreate do all the real work.
* ----------------
@ -682,7 +704,8 @@ DefineType(char *typeName, List *parameters)
elemName, /* element type name */
defaultValue, /* default type value */
byValue, /* passed by value */
alignment);
alignment,
storage); /* TOAST strategy */
/* ----------------
* When we create a true type (as opposed to a complex type)
@ -704,7 +727,8 @@ DefineType(char *typeName, List *parameters)
typeName, /* element type name */
defaultValue, /* default type value */
false, /* never passed by value */
alignment);
alignment,
'p'); /* ARRAY doesn't support TOAST yet */
pfree(shadow_type);
}