[IGNITE-14637] Calcite engine. Support for statistics and approximate statistics aggregate functions

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: sql
• Labels: calcite2-required calcite3-required
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Unassigned
• Reporter: Taras Ledkov
• Created: 23/Apr/21 07:38
• Updated: 22/Sep/21 06:22

Description

Implements the approximate aggregate functions:

• QUANTILES
• MEDIAN
• HISTOGRAM
• MODE
• APPROX_COUNT_DISTINCT
• APPROX_QUANTILES

Tests:
aggregate/aggregates/test_approx_quantile.test
aggregate/aggregates/test_approximate_distinct_count.test
aggregate/aggregates/test_histogram.test
aggregate/aggregates/test_mode.test
aggregate/aggregates/test_quantile.test_ignored
aggregate/aggregates/test_quantile_list.test_ignored

Issue Links

• is part of: IGNITE-14535 Caclite SQL engine capabilities