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Change the overview table naming scheme

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The scheme is changed from table_ovN to _vovw_N_table for
lower collision probability.
Also future naming changes will be easier by using the functions
_CDB_OverviewTableDiscriminator, _CDB_OverviewTableName,
_CDB_IsOverviewTableOf, etc.
This commit is contained in:
Javier Goizueta
2016-01-26 13:20:28 +01:00
parent 1ebaeb76ac
commit 474de01757
3 changed files with 104 additions and 39 deletions
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7
test/CDB_OverviewsTest.sql
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@@ -8,7 +8,7 @@ SELECT _CDB_Aggregated_Attributes_Expression('base_bare_t'::regclass);
SELECT _CDB_Aggregated_Attributes_Expression('base_bare_t'::regclass, 'tab');
SELECT CDB_CreateOverviews('base_bare_t'::regclass);
SELECT count(*) FROM base_bare_t_ov5;
SELECT count(*) FROM _vovw_5_base_bare_t;
SELECT _CDB_Aggregable_Attributes_Expression('base_t'::regclass);
@@ -16,15 +16,14 @@ SELECT _CDB_Aggregated_Attributes_Expression('base_t'::regclass);
SELECT _CDB_Aggregated_Attributes_Expression('base_t'::regclass, 'tab');
SELECT CDB_CreateOverviews('base_t'::regclass);
SELECT count(*) FROM base_t_ov5;
SELECT count(*) FROM _vovw_5_base_t;
SELECT CDB_Overviews('base_t'::regclass);
SELECT CDB_Overviews(ARRAY['base_t'::regclass, 'base_bare_t'::regclass]);
SELECT CDB_DropOverviews('base_bare_t'::regclass);
SELECT CDB_DropOverviews('base_t'::regclass);
SELECT count(*) FROM base_t_ov5;
SELECT count(*) FROM _vovw_5_base_t;
DROP TABLE base_bare_t;
DROP TABLE base_t;