Impala ClickHouse 建表工作已经接近尾声,前瞻一下
https://github.com/apache/impala/blob/master/be/src/service/query-options.h#L53
Impala 也有这么愚蠢的代码,我就放心改了
// Macro to help generate functions that use or manipulate query options.
// If the DCHECK is hit then handle the missing query option below and update
// the DCHECK.
// Specifically, the DCHECK will make sure that the number of elements in
// the map _TImpalaQueryOptions_VALUES_TO_NAMES automatically generated in
// ImpalaService_types.cpp is equal to the largest integer associated with an
// option in the enum TImpalaQueryOptions (defined in ImpalaService.thrift)
// plus one. Thus, the second argument to the DCHECK has to be updated every
// time we add or remove a query option to/from the enum TImpalaQueryOptions.
#define QUERY_OPTS_TABLE\
DCHECK_EQ(_TImpalaQueryOptions_VALUES_TO_NAMES.size(),\
TImpalaQueryOptions::LOCK_MAX_WAIT_TIME_S + 1);\
REMOVED_QUERY_OPT_FN(abort_on_default_limit_exceeded, ABORT_ON_DEFAULT_LIMIT_EXCEEDED)\
QUERY_OPT_FN(abort_on_error, ABORT_ON_ERROR, TQueryOptionLevel::REGULAR)\
REMOVED_QUERY_OPT_FN(allow_unsupported_formats, ALLOW_UNSUPPORTED_FORMATS)\
QUERY_OPT_FN(batch_size, BATCH_SIZE, TQueryOptionLevel::DEVELOPMENT)\
QUERY_OPT_FN(debug_action, DEBUG_ACTION, TQueryOptionLevel::DEVELOPMENT)\
REMOVED_QUERY_OPT_FN(default_order_by_limit, DEFAULT_ORDER_BY_LIMIT)\
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原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。