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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-03-23 05:14:37 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-03-23 05:14:37 +0000 |
| commit | 8d9e025e7fcc68737d5a0e99b457417ed595af46 (patch) | |
| tree | feca4424957b7784e94428b5ed938454a4c71fdf /doc/src | |
| parent | efeffae2457c69802eed7e4c45c1c3c97528a6fe (diff) | |
| download | postgresql-8d9e025e7fcc68737d5a0e99b457417ed595af46.tar.gz postgresql-8d9e025e7fcc68737d5a0e99b457417ed595af46.zip | |
Instead of storing pg_statistic stavalues entries as text strings, store
them as arrays of the internal datatype. This requires treating the
stavalues columns as 'anyarray' rather than 'text[]', which is not 100%
kosher but seems to work fine for the purposes we need for pg_statistic.
Perhaps in the future 'anyarray' will be allowed more generally.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/catalogs.sgml | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 4b50e8f4427..ddac7b38420 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -1,6 +1,6 @@ <!-- Documentation of the system catalogs, directed toward PostgreSQL developers - $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.66 2003/02/22 00:45:03 tgl Exp $ + $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.67 2003/03/23 05:14:36 tgl Exp $ --> <chapter id="catalogs"> @@ -3050,12 +3050,14 @@ <row> <entry>stavaluesN</entry> - <entry><type>text[]</type></entry> + <entry><type>anyarray</type></entry> <entry></entry> <entry>Column data values of the appropriate kind for the Nth - <quote>slot</quote>, or NULL if the slot kind does not store any data values. - For data-type independence, all column data values are converted - to external textual form and stored as TEXT datums. + <quote>slot</quote>, or NULL if the slot kind does not store any data + values. + Each array's element values are actually of the specific column's + datatype, so there is no way to define these columns' type more + specifically than <quote>anyarray</>. </entry> </row> </tbody> |