Add Support for Alternate Legacy MULTIMATCH syntax

[forestmvey]

Signed-off-by: forestmvey [email protected]

Description

Add support for alternative syntax of MULTI_MATCH relevance search functions. Legacy engine supports parameter keys as quoted, or unquoted values for both required and optional arguments. This syntax has been ported over to all relevance functions in the V2 engine.

Example Queries

SELECT * FROM stackexchange_beer WHERE MULTI_MATCH('query'='cicerone', 'fields'='Tags');
SELECT * FROM stackexchange_beer WHERE MULTIMATCH('query'='cicerone', 'fields'='Tags');
SELECT * FROM stackexchange_beer WHERE MULTIMATCHQUERY('query'='cicerone', fields='Tags');
SELECT * FROM stackexchange_beer WHERE MULTIMATCHQUERY(query='cicerone', 'fields'=['Title,Tags^2.0']);

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Merging #168 (cfb2650) into integ-add-alternate-multi-match-syntax (cfb2650) will not change coverage.
The diff coverage is n/a.

❗ Current head cfb2650 differs from pull request most recent head b56025c. Consider uploading reports for the commit b56025c to get more accurate results

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Flag	Coverage Δ
sql-engine	98.29% <0.00%> (ø)

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