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21 suites report PASSED with zero checks when pyarrow is missing, so the whole Arrow and Parquet surface can leave the gate silently

Status: Open.

#447 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 6, 2026

Citus columnar loads the same data 3x faster than we do, which contradicts why #300 was closed

Status: Open.

#445 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 6, 2026

Values just below the MCV threshold get a 300x underestimate, and nothing decides they deserve closer attention

Status: Open.

#438 In commandprompt/pgcolumnar;

· jdatcmd opened on Aug 5, 2026

Columnar partitions get neither the custom scan nor the index-fetch penalty: set_rel_pathlist_hook returns early for non-baserels

Status: Open.

#436 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 5, 2026

Index-fetch penalty collapses to zero on a correlated index, and the custom scan is priced as if zone maps did not exist

Status: Open.

#434 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 5, 2026

Row groups above the 32 MB fetch-cache cap have a 100 percent miss rate: a full group re-read per fetched row

Status: Open.

#433 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 5, 2026

Now that we have gone alpha, perhaps it is time to port our tests

Status: Open.

#432 In commandprompt/pgcolumnar;

· jdatcmd opened on Aug 5, 2026

Text predicates cannot be pushed down, so a LIKE scan decodes every value: 2.2x slower where an integer predicate is 27.7x faster

Status: Open.

#426 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 5, 2026

Ungrouped vectorized aggregate errors on a varlena filter column: unsupported byval length: -1

Status: Open.

#423 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 5, 2026

Future: a background worker to schedule columnar vacuum and analyze, which autovacuum cannot reach

enhancementNew feature or requestNew feature or request

Status: Open.

#415 In commandprompt/pgcolumnar;

· jdatcmd opened on Aug 5, 2026

A pgcolumnar.analyze() could read one column instead of all, and take null_frac and bounds exactly from zone maps

enhancementNew feature or requestNew feature or request

Status: Open.

#414 In commandprompt/pgcolumnar;

· jdatcmd opened on Aug 5, 2026

Opportunities from Abadi's materialization strategies and MonetDB/X100, with what we already implement

enhancementNew feature or requestNew feature or request

Status: Open.

#405 In commandprompt/pgcolumnar;

· ChronicallyJD opened on Aug 4, 2026