[DO NOT MERGE] Linestring : TDS Receiver and CAST geometry from bytea

[Mohitraj-g]

LINESTRING SUPPORT

This PR implements LINESTRING geometry type support in Babelfish, expanding beyond the current POINT-only implementation.

Key Changes:

1. Parser Modifications

   • Added LINESTRING syntax support
   • Implemented handling of varying point dimensions within LINESTRING
   • Added normalization of points to highest dimension using NaN values

2. TDS Layer Enhancements

   • TDS Sender:

     • Added coordinate reordering from PostGIS (x1 y1 z1 m1) to TSQL format (x1 y1 x2 y2 z1 z2 m1 m2)
     • Implemented validity byte handling
     • Added bounding box processing

   • TDS Receiver:

     • Implemented reverse coordinate ordering
     • Added manual bounding box calculation
     • Added bbox flag setting for PostGIS format

3. CAST Operations

   • CharToGeom/CharToGeog:

     • Added LINESTRING WKT parsing
     • Implemented dimension normalization

   • GeomToChar/GeogToChar:

     • Added NaN coordinate omission
     • Implemented dimension-based formatting

   • GeomToByte/ByteToGeom:

     • Added coordinate order conversion
     • Implemented validity flag handling

4. Function change:

• Included STIsValid within seven functions: STDistance, STDisjoint, STContains, STEquals, STIntersects, STArea, STDimension

Testing:

• Added unit tests for parser
• Added TDS protocol tests
• Added CAST operation tests

Issues Resolved

BABEL-5766
BABEL-5767
BABEL-5768

Signed-off by: Mohit Raj mrxmohit@amazon.com

Authored by: Mohit Raj mrxmohit@amazon.com

Test Scenarios Covered

• Use case based - Yes

• Boundary conditions - Yes

• Arbitrary inputs - Yes

• Negative test cases - Yes

• Minor version upgrade tests -

• Major version upgrade tests -

• Performance tests -

• Tooling impact -

• Client tests -

Check List

• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is under the terms of the Apache 2.0 and PostgreSQL licenses, and grant any person obtaining a copy of the contribution permission to relicense all or a portion of my contribution to the PostgreSQL License solely to contribute all or a portion of my contribution to the PostgreSQL open source project.

For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[coveralls]

Pull Request Test Coverage Report for Build 15893621994

Details

• 726 of 747 (97.19%) changed or added relevant lines in 5 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.2%) to 76.019%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
contrib/babelfishpg_common/src/geo.c	117	120	97.5%
contrib/babelfishpg_common/src/spatialtypes.c	272	280	97.14%
contrib/babelfishpg_tds/src/backend/tds/tdstypeio.c	299	309	96.76%

Files with Coverage Reduction	New Missed Lines	%
contrib/babelfishpg_tds/src/backend/tds/tdscomm.c	2	76.23%

Totals
Change from base Build 15889588684:	0.2%
Covered Lines:	50000
Relevant Lines:	65773

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💛 - Coveralls