mvservice: simplify purge helper error return (#66953)

* mvservice: simplify purge helper error return

* parser, executor, mvservice: switch mv refresh mode syntax to async

* executor: support min_count/max_count one-phase agg pushdown to tiflash (#26)

* pushdown min_count/max_count to tiflash

Signed-off-by: gengliqi <gengliqiii@gmail.com>

* u

Signed-off-by: gengliqi <gengliqiii@gmail.com>

* u

Signed-off-by: gengliqi <gengliqiii@gmail.com>

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Signed-off-by: gengliqi <gengliqiii@gmail.com>

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Signed-off-by: gengliqi <gengliqiii@gmail.com>
Co-authored-by: Liqi Geng <gengliqiii@gmail.com>

br: upgrade aws-sdk-go to v1.48.14 (#66804)

close #66796

{"author":"zhangyuanjia@pingcap.com"}

planner: fix the HasFTS check for multi table case (#66389) (#66575)

ref #64651

ddl: add softdelete/affinity into mustloadtableinfo (#66283)

ref #64281

planner,deps: allow CDC updating PK in ON DUPLICATE UPDATE on soft-de…

…lete tables (#66267)

ref #64281

ddl: add more corner tests for active-active (#66252)

ref #64281

ddl: add softdelete/affinity into mustloadtableinfo (#66283)

ref #64281

planner: remove redundant branches in the OR list (#58962) (#66197)

close #58998

{"author":"jujiajia@pingcap.com"}