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Siying Dong 15b31b57df MergingIterator.Seek() to lazily initialize MinHeap 
Summary:
For the use cases that prefix filtering is enabled, initializing heaps when doing MergingIterator.Seek() might introduce non-negligible costs. This patch makes it lazily done.

Test Plan: make all check

Reviewers: haobo,dhruba,kailiu

CC:

Task ID: #

Blame Rev:
2013-11-20 17:29:35 -08:00
..
block.cc Implement a compressed block cache. 2013-11-01 14:31:35 -07:00
block.h Implement a compressed block cache. 2013-11-01 14:31:35 -07:00
block_based_table_builder.cc Move flush_block_policy from Options to TableFactory 2013-11-19 22:00:48 -08:00
block_based_table_builder.h Move flush_block_policy from Options to TableFactory 2013-11-19 22:00:48 -08:00
block_based_table_factory.cc Move flush_block_policy from Options to TableFactory 2013-11-19 22:00:48 -08:00
block_based_table_factory.h Move flush_block_policy from Options to TableFactory 2013-11-19 22:00:48 -08:00
block_based_table_reader.cc Improve the "table stats" 2013-11-19 16:29:42 -08:00
block_based_table_reader.h Improve the "table stats" 2013-11-19 16:29:42 -08:00
block_builder.cc Make the options in table_builder/block_builder less misleading 2013-11-16 23:21:15 -08:00
block_builder.h Make the options in table_builder/block_builder less misleading 2013-11-16 23:21:15 -08:00
block_test.cc Make the options in table_builder/block_builder less misleading 2013-11-16 23:21:15 -08:00
filter_block.cc Fix two nasty use-after-free-bugs 2013-11-19 21:01:48 -08:00
filter_block.h Add the index/filter block cache 2013-11-12 22:46:51 -08:00
filter_block_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
flush_block_policy.cc Don't not suggest flushing data when data block is still empty 2013-11-11 21:05:16 -08:00
format.cc Fix stress test failure when using mmap-reads. 2013-11-06 15:40:26 -08:00
format.h Implement a compressed block cache. 2013-11-01 14:31:35 -07:00
iter_heap.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
iterator.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
iterator_wrapper.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
merger.cc MergingIterator.Seek() to lazily initialize MinHeap 2013-11-20 17:29:35 -08:00
merger.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
table_reader_bench.cc Add an option to table_reader_bench to access the table from DB And Iterating non-existing prefix case. 2013-11-15 22:23:12 -08:00
table_test.cc Move flush_block_policy from Options to TableFactory 2013-11-19 22:00:48 -08:00
two_level_iterator.cc Fix slow no-io iterator 2013-11-06 14:11:52 -08:00
two_level_iterator.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00