Support Hive DELETE & MERGE statement parse

[ClaireLytt]

for #35925
official document:https://hive.apache.org/docs/latest/language/languagemanual-dml/#delete
https://hive.apache.org/docs/latest/language/languagemanual-dml/#merge
https://hive.apache.org/docs/latest/language/languagemanual-ddl/#keywords-non-reserved-keywords-and-reserved-keywords

Changes proposed in this pull request:

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