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Unclear which regex matched column error occurs in with Polars

bugSomething isn't workingSomething isn't working

Status: Open.

#2221 In unionai-oss/pandera;

· hvangeffen opened on Feb 19, 2026

<code>str_length_strategy</code> does not implement new <code>exact_length</code> argument

bugSomething isn't workingSomething isn't working

Status: Open.

#2219 In unionai-oss/pandera;

· tehunter opened on Feb 18, 2026

custom parser + built in validator + drop_invalid_rows = True results on missing data

bugSomething isn't workingSomething isn't working

Status: Open.

#2216 In unionai-oss/pandera;

· AlexAbades opened on Feb 12, 2026

Metadata on index fields is not persisted

bugSomething isn't workingSomething isn't working

Status: Open.

#2215 In unionai-oss/pandera;

· Girmii opened on Feb 10, 2026

Inconsistent Pandas DataFrame validation with DataFrameSchema with both strict and ordered set to True.

bugSomething isn't workingSomething isn't working

Status: Open.

#2213 In unionai-oss/pandera;

· jonasboecquaert opened on Jan 30, 2026

DataFrame Typing Changes in pandas 3.0.0

enhancementNew feature or requestNew feature or request

Status: Open.

#2212 In unionai-oss/pandera;

· erklem opened on Jan 28, 2026

Allow newer union type annotations when using DataFrameModels

enhancementNew feature or requestNew feature or request

Status: Open.

#2211 In unionai-oss/pandera;

· TresTres opened on Jan 28, 2026

Pandera MultiIndex tz-aware level loses timezone during validation when full materialization path is used

bugSomething isn't workingSomething isn't working

Status: Open.

#2205 In unionai-oss/pandera;

· Owen-OptiGrid opened on Jan 12, 2026

Ibis table validation failed cases does not include correct index of the row.

bugSomething isn't workingSomething isn't working

Status: Open.

#2188 In unionai-oss/pandera;

· af6140 opened on Dec 15, 2025

Nullable pa.Date field with add_missing_columns=True fails validation when column is auto-added with pd.NaT default

bugSomething isn't workingSomething isn't working

Status: Open.

#2183 In unionai-oss/pandera;

· bBekan-Maistra opened on Dec 8, 2025

Multiindexed columns (schemas) are not serialisable

bugSomething isn't workingSomething isn't working

Status: Open.

#2182 In unionai-oss/pandera;

· ConorForgie opened on Dec 5, 2025

Error - Pandera Pyspark - Not able to do check for str_matches

bugSomething isn't workingSomething isn't working

Status: Open.

#2181 In unionai-oss/pandera;

· rovertttt opened on Dec 4, 2025