Javier Goizueta
457b614d96
Exclude null geometries to create overviews
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Fixes #269
2016-07-05 16:45:12 +02:00
Javier Goizueta
1f01ecae30
Exclude overviews from user data size
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Fixes #261
Some internal functions from the Overviews module
have been moved to a separate file because they're now
used from Quaota function.
2016-06-13 10:04:13 +02:00
Javier Goizueta
9526f0448f
Fix bug in feature density recursive query
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If the table had x and/or y columns they were picked by an inner
select instead of the recursive arguments.
Fixes #256
2016-05-26 18:25:11 +02:00
Javier Goizueta
3399f2b9a5
Fix max overviews level usage
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Note that _CDB_Feature_Density_Ref_Z_Strategy returns the first
level for which overviews should not be used, and that in some
cases _CDB_Feature_Density should look beyond the max level to
compute a feature density estimate.
2016-05-25 14:00:55 +02:00
Javier Goizueta
803b3671d0
Fixes for feature density computation
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* The initial iteration of the recursive feature density query shouldn't
start beyond the maximum level
* Correct off-by-one limit the rest of iterations
2016-05-25 11:21:12 +02:00
Javier Goizueta
c3fada29a8
Comment how the max overview level is defined
2016-05-25 11:07:06 +02:00
Javier Goizueta
86e5f6d317
Limit the maximum overview level to 23
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Fixes #257
23 = 32 bits per integer - 1 sign bit - 8 bits px/tile
2016-05-24 18:18:58 +02:00
Javier Goizueta
8d7860dc7a
Fixes #252
2016-05-09 11:54:56 +02:00
Javier Goizueta
b5427c65c8
Drop aggregate to be defined
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Otherwise future versions will fail to recreate the aggregate
2016-04-29 08:46:01 +02:00
Javier Goizueta
a067cc7da1
Generate stats used to identify category columns in overviews if needed
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This only generates the stats if no stats are available for a table.
This doesn't warrant that the stats are up to date or accurate.
2016-04-27 15:06:09 +02:00
Javier Goizueta
2c43943df6
Fix syntax
2016-04-26 18:27:52 +02:00
Javier Goizueta
417cbe7902
Fix category columns aggregation in overviews
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Overviews are created in cascade, each one from the inmediate
lower level, but the stats to decide if a column is a category
should be taken always from the base table.
2016-04-26 18:02:25 +02:00
Javier Goizueta
9a73703954
Use mode to aggregate categorical columns in overviews
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Fixes #245
2016-04-26 15:15:24 +02:00
Javier Goizueta
f7cce21eb7
Merge pull request #242 from CartoDB/240-overviews-pixels
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Adjust overview points to pixel centers
2016-04-25 17:30:25 +02:00
Javier Goizueta
11ad45306f
Remove unneeded pg_catalog schema name
2016-04-25 16:30:58 +02:00
Javier Goizueta
3c12cf629f
Optimize overview pixel adjustment for integer-pixel cells
2016-04-25 13:53:59 +02:00
Javier Goizueta
7b2100b51e
Adjust overview coordinates to pixel centers
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This makes the adjustment for all grid sizes, not only
for integral number of pixels.
2016-04-25 13:33:43 +02:00
Javier Goizueta
580ec38ab8
Adjust overview clustered point to pixel centers
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Fixes #240
2016-04-23 15:07:06 +02:00
Javier Goizueta
06ebb27160
Optimize internal funcion _cdb_unlimited_text_column
2016-04-18 18:50:37 +02:00
Javier Goizueta
ef43623f77
Remove unneeded variable
2016-04-15 17:58:03 +02:00
Javier Goizueta
1b0f77aa96
Always retain single-valued aggregated texts
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This makes columns which have the same value in a group to be aggregated
maintain that value (rather than replacing it by the multiple-value
indicator *) whatever the group value is. (Previously this happend
only for small groups)
2016-04-15 17:49:00 +02:00
Javier Goizueta
45f063d469
Aggregate small number of text items in overviews
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Instead of nulling text fields for non-singleton aggregated records
concatenate distinct text values when they're few (5 or less).
Fixes #231
2016-04-15 12:37:16 +02:00
Javier Goizueta
176d69d09e
Fix AVG computation in overview tables
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Fixes #232
Averages of averages are not equal to overall averages.
2016-04-15 10:48:08 +02:00
Javier Goizueta
9fdbfda60a
Merge pull request #228 from CartoDB/225-no-centroid-master
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Use cell centers, not cluster centroids when grouping points
2016-04-15 10:06:44 +02:00
Javier Goizueta
9a3d93976c
Merge pull request #227 from CartoDB/226-add_count_aggregated_features
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Include and aggregate _vovw_count column to count aggregated features
2016-04-15 10:06:05 +02:00
Javier Goizueta
46b45f6dd4
Merge pull request #224 from CartoDB/223-fix-dropoverviews
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Fix CDB_DropOverviews and CDB_Overviews problems
2016-04-15 10:05:28 +02:00
Carla Iriberri
fd14750ce5
Rename _vovw_count to _feature_count
2016-04-14 18:23:09 +02:00
Javier Goizueta
c595e45c11
Add _vovw_count columnt to tables for which overviews are created
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Initially we planned to add this column to the queries sent to the
tiler only, but that makes the column hard to access from the editor.
2016-04-14 17:32:18 +02:00
Javier Goizueta
f785e71d3b
Fix: numeric is a valid numeric column type
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Actually this is the type of aggregated _vovw_count columns
2016-04-14 15:46:03 +02:00
Carla
14b8cd7d99
Set default value to 1 and remove typo line
2016-04-14 12:12:17 +02:00
Carla
1a571c8a9c
Set tolerance to 1 pixel
2016-04-14 11:13:59 +02:00
Carla Iriberri
8f44f5347a
Fix indent for code clarity
2016-04-13 17:51:30 +02:00
Carla Iriberri
f96163265b
Fix bug for tables without geom or with no potential overviews
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If the table doesn't have geometries but the createoverviews function is
called, the current geometry type checks won't work because "null" will
not give a boolean value in the type comparisons.
Also, if the createoverviews function is called over a simple table with
would not require overviews according to the strategies it is handled
correctly.
2016-04-13 17:49:38 +02:00
Javier Goizueta
1c67214b09
Use cell centers, not cluster centroids when grouping points
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Fixes #225
2016-04-13 11:14:09 +02:00
Carla Iriberri
16d08ef52b
Include and aggregate _vovw_count column to count aggregated features
2016-04-12 11:10:55 +02:00
Javier Goizueta
15ac9a2cd9
Remove unneeded code
2016-04-07 10:30:10 +02:00
Javier Goizueta
ee61d46100
💄 rename variable for clarity
2016-04-07 10:24:02 +02:00
Javier Goizueta
49e7094c8a
Make CDB_CreateOverview usable by superuser
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CDB_CreateOverview had to be executed with the user role
corresponding to the owner of the table; now it can be executed
by the postgres user.
2016-04-07 07:52:58 +02:00
Javier Goizueta
fb910be12f
Fix conversion of regclass to indentifier
2016-04-07 07:07:20 +02:00
Javier Goizueta
34c39662ec
Replace use of CDB_UserTables in CDB_Overviews
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Use a function that returns reclasses and schema names properly instead.
2016-04-07 00:07:45 +02:00
Javier Goizueta
84cac16d1c
Temporary fix
2016-04-06 22:05:00 +02:00
Javier Goizueta
c1fc07d2ac
Fix typo
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This function isn't beint actively used; should consider removing it
or testing it properly
2016-04-06 18:58:37 +02:00
Javier Goizueta
5c3c0f5fc9
Fix bug in CDB_DropOverviews
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Fixes #223
2016-04-06 18:57:52 +02:00
Javier Goizueta
06bb669d4c
Add comment
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Clarify the reason why some functions are dropped at the
end of the file and not where their new definitions are.
2016-04-05 13:22:07 +02:00
Javier Goizueta
00a3d6e650
Fix upgrades from prior versions
2016-04-05 13:10:00 +02:00
Javier Goizueta
f0ff197c56
Merge branch 'master' into 219-overviews-tolerance
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# Conflicts:
# scripts-available/CDB_Overviews.sql
# test/CDB_OverviewsTest_expect
2016-04-05 13:08:22 +02:00
Javier Goizueta
57c32332e2
New function CDB_CreateOverviewsWithToleranceInPixels
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This function allows defining the previously fixed parameter grid_px.
The lim parameter used to define the reference Z level is also
correlated to this value.
Fixes #219
2016-04-04 19:21:10 +02:00
Javier Goizueta
3c71eecbae
Fix cases that require explicit schema name
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This allows using overview functions in situations where
the base tables require being qualified with the schema name.
2016-04-04 17:45:20 +02:00
Javier Goizueta
c0262a05eb
Fix CDB_Overviews for cases that require explicit schema name
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Fixes #218
2016-04-04 17:02:59 +02:00
Javier Goizueta
4074173c05
Add support for boolean columns in overview creation
2016-03-21 12:58:29 +01:00