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Avoid creating a TOAST table if we can prove that the maximum tuple

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length is < TOAST_TUPLE_THRESHOLD, even with toastable column types
present.  For example, CREATE TABLE foo (f1 int, f2 varchar(100))
does not require a toast table, even though varchar is a toastable
type.
This commit is contained in:
Tom Lane
2000-08-25 18:05:54 +00:00
parent a5da56d320
commit 3d3ca010aa
3 changed files with 151 additions and 88 deletions
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3
src/include/utils/builtins.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: builtins.h,v 1.134 2000/08/24 03:29:14 tgl Exp $
* $Id: builtins.h,v 1.135 2000/08/25 18:05:53 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -583,5 +583,6 @@ extern Datum PG_char_to_encoding(PG_FUNCTION_ARGS);
/* format_type.c */
extern Datum format_type(PG_FUNCTION_ARGS);
extern Datum oidvectortypes(PG_FUNCTION_ARGS);
extern int32 type_maximum_size(Oid type_oid, int32 typemod);
#endif /* BUILTINS_H */