[Backport 2.x][Feature] Support SQL direct query in Observability (#988)#1072

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mengweieric merged 2 commits intoopensearch-project:2.xfrom joshuali925:backport-988

Oct 4, 2023

+1,919-423

Commits on Oct 4, 2023

[Feature] Support SQL direct query in Observability (opensearch-project#988 )

mengweieric
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joshuali925
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remove datasource routers
joshuali925
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