fix(sql): pagination remove extra conversions

[ArslanSaleem]

Important

Simplifies SQL pagination logic by removing extra conversions and ensuring column names are quoted in paginator.py.

• Behavior:
  • Removed extra SQL query conversion steps in apply_pagination() in paginator.py.
  • Ensures column names are quoted in SQL queries for consistency and correctness.
• Testing:
  • Updated tests in test_paginator.py to reflect changes in query formatting.
  • Tests cover string, numeric, datetime, boolean, and UUID searches, as well as sorting and filtering.
  • Ensures that pagination logic works without unnecessary conversions.

^{This description was created by for 5676ca5. It will automatically update as commits are pushed.}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.71%. Comparing base (dab41c2) to head (5676ca5).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1702      +/-   ##
==========================================
- Coverage   91.72%   91.71%   -0.01%     
==========================================
  Files          72       72              
  Lines        2803     2800       -3     
==========================================
- Hits         2571     2568       -3     
  Misses        232      232              

Flag	Coverage Δ
unittests	91.71% <100.00%> (-0.01%)	⬇️

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[ellipsis-dev]

👍 Looks good to me! Reviewed everything up to 5676ca5 in 1 minute and 51 seconds

More details

• Looked at 171 lines of code in 2 files
• Skipped 0 files when reviewing.
• Skipped posting 4 drafted comments based on config settings.

1. pandasai/query_builders/paginator.py:110

• Draft comment:
  Review: Converting the query to the Postgres dialect here standardizes pagination, but ensure that this conversion does not introduce unintended changes for non-standard SQL queries. Also, the consistent use of double quoting helps avoid SQL conflicts; verify that all dialect-specific nuances are handled.
• Reason this comment was not posted:
  Comment did not seem useful. Confidence is useful = 50% <= threshold 50%
  The comment is asking the author to ensure that the conversion to Postgres dialect does not introduce unintended changes and to verify dialect-specific nuances. This violates the rule against asking the author to ensure or verify things. However, the part about the consistent use of double quoting to avoid SQL conflicts is a valid suggestion. I will approve the comment with a lower confidence due to the mixed content.

2. tests/unit_tests/query_builders/test_paginator.py:240

• Draft comment:
  Note: The combined functionality test expects exactly 4 parameters (search, filter, LIMIT, OFFSET). If future updates add extra conditions, update this assertion to reflect the correct parameter count.
• Reason this comment was not posted:
  Comment was not on a location in the diff, so it can't be submitted as a review comment.

3. pandasai/query_builders/paginator.py:166

• Draft comment:
  Consider validating that filter keys (i.e. the column names in pagination.filters) are among the allowed columns. Currently, the code iterates over filters without checking if the column exists, which could lead to unexpected behavior or potential SQL injection if malicious keys are passed.
• Reason this comment was not posted:
  Comment was not on a location in the diff, so it can't be submitted as a review comment.

4. pandasai/query_builders/paginator.py:111

• Draft comment:
  The use of sqlglot.transpile()[0] assumes that the transpile function always returns at least one element. Consider adding error handling or an assertion to guard against an empty result, which might lead to an IndexError in edge cases.
• Reason this comment was not posted:
  Decided after close inspection that this draft comment was likely wrong and/or not actionable: usefulness confidence = 20% vs. threshold = 50%
  While technically correct that accessing [0] could raise an IndexError if transpile() returns an empty list, this seems like an edge case. SQLGlot is a SQL parser/transpiler - if it can't transpile a query, it would likely raise its own exception rather than return an empty list. The comment is speculative without strong evidence that this is actually a problem.
  I could be wrong about SQLGlot's behavior - maybe it does return empty lists in some cases. The comment does point out a potential runtime error.
  Without documentation or evidence showing that SQLGlot's transpile() can return empty lists, this feels like speculation about an edge case that likely doesn't exist in practice.
  Delete the comment as it's speculative without strong evidence that SQLGlot's transpile() can actually return empty lists in practice.

Workflow ID: wflow_CWM02JriiVu0IeXK

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