# \#bug

**URL:** https://community.questdb.com/tag/bug/5.md

[Latest](https://community.questdb.com/latest.md) · [Categories](https://community.questdb.com/categories.md) · [Tags](https://community.questdb.com/tags.md)

---

## [Ead\_parquet() ignores cairo.sql.copy.root and always reads from cairo.sql.copy.export.root](https://community.questdb.com/t/ead-parquet-ignores-cairo-sql-copy-root-and-always-reads-from-cairo-sql-copy-export-root/934)

<div class="topic-metadata">

**Author:** [@mmzz](https://community.questdb.com/u/mmzz)\
**Replies:** 4\
**Last updated:** [November 11, 2025, 10:03am UTC](https://community.questdb.com/t/ead-parquet-ignores-cairo-sql-copy-root-and-always-reads-from-cairo-sql-copy-export-root/934 "2025-11-11T10:03:20Z")

</div>

Hello QuestDB team, While testing read\_parquet() on QuestDB 9.1.1 (Build a266bb9…), I noticed it only works when the Parquet file is under cairo.sql.copy.export.root, even though the docs state it should honor cairo.sql…

---

## [Using a materialized view as another materialized view as base timeout / OOM](https://community.questdb.com/t/using-a-materialized-view-as-another-materialized-view-as-base-timeout-oom/839)

<div class="topic-metadata">

**Author:** [@JForsaken](https://community.questdb.com/u/JForsaken)\
**Replies:** 29\
**Last updated:** [June 3, 2025, 6:42am UTC](https://community.questdb.com/t/using-a-materialized-view-as-another-materialized-view-as-base-timeout-oom/839 "2025-06-03T06:42:57Z")

</div>

Hey guys! Been loving what you guys are doing with QuestDB \<3 The current issue i’m having is with trying to have rollup MVs for a price system. I have a base table that has ~700M rows (between 1-10M rows per partition,…

---

## [cant enable wal on my intance in macos or docker](https://community.questdb.com/t/cant-enable-wal-on-my-intance-in-macos-or-docker/837)

<div class="topic-metadata">

**Author:** [@Aviad\_Korakin](https://community.questdb.com/u/Aviad_Korakin)\
**Replies:** 1\
**Last updated:** [May 21, 2025, 7:48pm UTC](https://community.questdb.com/t/cant-enable-wal-on-my-intance-in-macos-or-docker/837 "2025-05-21T19:48:28Z")

</div>

i set the config to apply it i tried with bypass wal as well but its just create all my tables as wal disabled, i enabled it in the server.conf and also tried this : CREATE TABLE IF NOT EXISTS motion ( ts TIMESTAMP, ax…

---

## [Bug: Random tables are created](https://community.questdb.com/t/bug-random-tables-are-created/791)

<div class="topic-metadata">

**Author:** [@ThomasJaeger](https://community.questdb.com/u/ThomasJaeger)\
**Replies:** 1\
**Last updated:** [March 30, 2025, 3:55pm UTC](https://community.questdb.com/t/bug-random-tables-are-created/791 "2025-03-30T15:55:49Z")

</div>

I’m using the latest version with he Go client on an AWS EC2 instance. I see more and more random tables created based on what looks like some of the payload/column values. This is happening random. Here is the Go code …

---

## [Comparing symbol columns](https://community.questdb.com/t/comparing-symbol-columns/250)

<div class="topic-metadata">

**Author:** [@ack22](https://community.questdb.com/u/ack22)\
**Replies:** 5\
**Last updated:** [December 9, 2024, 9:27pm UTC](https://community.questdb.com/t/comparing-symbol-columns/250 "2024-12-09T21:27:42Z")

</div>

Hi, I am encountering a strange issue when comparing 2 symbol columns. for example: select \* from table1 where symbol1 != symbol2 returns rows where symbol1 is exactly the same value as symbol2. If I cast either one o…

---

## [QuestDB 8.1.2 - Unexpected filter error](https://community.questdb.com/t/questdb-8-1-2-unexpected-filter-error/226)

<div class="topic-metadata">

**Author:** [@Mat](https://community.questdb.com/u/Mat)\
**Replies:** 5\
**Last updated:** [December 2, 2024, 10:30pm UTC](https://community.questdb.com/t/questdb-8-1-2-unexpected-filter-error/226 "2024-12-02T22:30:54Z")

</div>

Hi everyone ! I’m having an issue when querying our QuestDB (8.1.2) A simple query that worked perfectly a few days ago now randomly started crashing and I don’t seem to understand why. I’m not quite certain but I hav…

---

## [Table get deleted at service restart](https://community.questdb.com/t/table-get-deleted-at-service-restart/176)

<div class="topic-metadata">

**Author:** [@Gabriel](https://community.questdb.com/u/Gabriel)\
**Replies:** 3\
**Last updated:** [September 16, 2024, 12:08pm UTC](https://community.questdb.com/t/table-get-deleted-at-service-restart/176 "2024-09-16T12:08:02Z")

</div>

I tried to set the o3MaxLag parameter at 2s when setting the global O3MinLag at 10s … since then, affected tables get deleted automatically when I restart the service… If I recreate the table, whatever I set this paramet…