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release-1-0-2

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Release date: May 14, 2026

This release fixes a bug where a query could return incorrect rows when all of the following were true:

  • the table uses merge mode (merge_mode);
  • the range result cache is enabled;
  • the query filters the time index column with OR (e.g. WHERE ts = a OR ts = b).

In this case the cache could reuse a previous query's result and return rows that should have been filtered out. This is now fixed. (#8105)

This release also improves performance for PromQL queries on tables whose time index uses a non-millisecond precision (e.g. Timestamp(ns) or Timestamp(us)). Previously the time-range filter could not be pushed down to storage in this case, so bounded PromQL queries fell back to scanning all SST files instead of pruning by time range. (#7926)

We recommend users on v1.0.0 and v1.0.1 upgrade to v1.0.2.

🚀 Features​

🐛 Bug Fixes​

  • fix: window sort off by one precision TimeRange&better alias track by @discord9 in #8019
  • fix(server): describe EXPLAIN statements so bind parameters work by @BootstrapperSBL in #8035
  • fix: windows windowed sort ci by @discord9 in #8039
  • fix: batched prometheus ingest row metric by @v0y4g3r in #8054
  • fix: preserve case in database name from connection string by @v0y4g3r in #8062
  • fix(metric-engine): validate column types and require time index in verify_rows by @BootstrapperSBL in #8018
  • fix: type inference for sql rewrite by @sunng87 in #8052
  • fix: infer time index from column meta on derived table by @waynexia in #8013
  • fix(mito): ignore compaction override in enum option validation by @QuakeWang in #8094
  • fix(mito2): drop unsound time-filter cache-key stripping by @evenyag in #8105
  • fix: remap batch table route addresses by @WenyXu in #8109
  • fix: avoid stale route update during repartition allocation by @WenyXu in #8115

New Contributors​

All Contributors​

We would like to thank the following contributors from the GreptimeDB community:

@BootstrapperSBL, @QuakeWang, @WenyXu, @discord9, @evenyag, @sunng87, @v0y4g3r, @waynexia