coreseek增量索引合并

重建主索引和增量索引：
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/usr/local/coreseek/bin/indexer--config /usr/local/coreseek/etc/csft.conf -rotate index_main  
/usr/local/coreseek/bin/indexer--config /usr/local/coreseek/etc/csft.conf -rotate index_add  

合并建主索引和增量索引：
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indexer --config /usr/local/coreseek/etc/csft.conf --merge index_main index_add --merge-dst-range deleted 0 0 -rotate  


重建整个索引：
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/usr/local/coreseek/bin/indexer --config /usr/local/coreseek/etc/csft.conf --rotate --all