feat: Support "BY NAME" qualifier for SQL "INTERSECT" and "EXCEPT" set ops

[alexander-beedie]

Updates sqlparser-rs to 0.49 to take advantage of some PRs I've made upstream.

• Adds support for the BY NAME qualifier across all set ops; like the existing support for this in UNION, the modifier aligns the second frame to the first by column name (in much the same way as "diagonal" frame concat).
• Follows-up feat: Support Struct field selection in the SQL engine, RENAME and REPLACE select wildcard options #17109 by enabling SELECT * REPLACE … RENAME … query patterns (previously you could not use both REPLACE and RENAME in the same sequence of SELECT modifiers - with the upstream fix available, now you can).
• A few other minor internal improvements/tidy-ups.

Example

Setup:

import polars as pl

df1 = pl.DataFrame({
    "x": [1, 9, 1, 1],
    "y": [2, 3, 4, 4],
    "z": [5, 5, 5, 5],
})
df2 = pl.DataFrame({
    "y": [2, None, 4],
    "w": ["?", "!", "%"],
    "z": [7, 6, 5],
    "x": [1, 9, 1],
})

Use of the BY NAME qualifier automatically aligns the columns in the second DataFrame to those in the first (note that we also support the PostgreSQL TABLE tbl shortcut, which is equivalent to SELECT * FROM tbl):

df_except = pl.sql(
  "SELECT x, y, z FROM df1 EXCEPT BY NAME TABLE df2",
).collect()
# shape: (2, 3)
# ┌─────┬─────┬─────┐
# │ x   ┆ y   ┆ z   │
# │ --- ┆ --- ┆ --- │
# │ i64 ┆ i64 ┆ i64 │
# ╞═════╪═════╪═════╡
# │ 1   ┆ 2   ┆ 5   │
# │ 9   ┆ 3   ┆ 5   │
# └─────┴─────┴─────┘

df_intersect = pl.sql(
  "SELECT * FROM df1 INTERSECT BY NAME TABLE df2",
).collect()
# shape: (1, 3)
# ┌─────┬─────┬─────┐
# │ x   ┆ y   ┆ z   │
# │ --- ┆ --- ┆ --- │
# │ i64 ┆ i64 ┆ i64 │
# ╞═════╪═════╪═════╡
# │ 1   ┆ 4   ┆ 5   │
# └─────┴─────┴─────┘

---

Reference

sqplarser-rs updates:

• Support use of BY NAME quantifier across all set ops apache/datafusion-sqlparser-rs#1309
• Fix Snowflake SELECT * wildcard REPLACE ... RENAME order apache/datafusion-sqlparser-rs#1321
• Fix quoted identifier regression edge-case with "from" in SELECT apache/datafusion-sqlparser-rs#1346

[codecov]

Codecov Report

Attention: Patch coverage is 95.65217% with 2 lines in your changes missing coverage. Please review.

Project coverage is 80.51%. Comparing base (4c19115) to head (8fcda9b).
Report is 9 commits behind head on main.

Files	Patch %	Lines
crates/polars-sql/src/context.rs	88.88%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #17835   +/-   ##
=======================================
  Coverage   80.51%   80.51%           
=======================================
  Files        1503     1503           
  Lines      197038   197076   +38     
  Branches     2805     2805           
=======================================
+ Hits       158641   158681   +40     
+ Misses      37876    37874    -2     
  Partials      521      521           

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[alamb]

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