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Add pg_column_size() to return storage size of a column, including

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possible compression.

Mark Kirkwood
This commit is contained in:
Bruce Momjian
2005-07-06 19:02:54 +00:00
parent b9cb132648
commit a923602855
6 changed files with 114 additions and 6 deletions
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10
src/include/access/tuptoaster.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 2000-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/access/tuptoaster.h,v 1.22 2005/03/21 01:24:04 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/tuptoaster.h,v 1.23 2005/07/06 19:02:53 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -138,4 +138,12 @@ extern Datum toast_compress_datum(Datum value);
*/
extern Size toast_raw_datum_size(Datum value);
/* ----------
* toast_datum_size -
*
* Return the storage size of a varlena datum
* ----------
*/
extern Size toast_datum_size(Datum value);
#endif /* TUPTOASTER_H */