cartodb4/cartodb-postgresql
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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)
This commit is contained in:
Javier Goizueta 2016-04-15 17:49:00 +02:00
parent 45f063d469
commit 1b0f77aa96
1 changed files with 1 additions and 1 deletions
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2
scripts-available/CDB_Overviews.sql
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@ -582,7 +582,7 @@ BEGIN
IF unlimited_text THEN
-- TODO: this should not be applied to columns containing largish text;
-- it is intended only to short names/identifiers
RETURN 'CASE WHEN count(*) = 1 THEN MIN(' || qualified_column || ') WHEN ' || total_feature_count || ' < 5 THEN string_agg(distinct ' || qualified_column || ','' / '') ELSE ''*'' END::' || column_type;
RETURN 'CASE WHEN count(distinct ' || qualified_column || ') = 1 THEN MIN(' || qualified_column || ') WHEN ' || total_feature_count || ' < 5 THEN string_agg(distinct ' || qualified_column || ','' / '') ELSE ''*'' END::' || column_type;
ELSE
RETURN 'CASE count(*) WHEN 1 THEN MIN(' || qualified_column || ') ELSE NULL END::' || column_type;
END IF;