1 row in set (0.10 sec) mysql> EXPLAIN SELECT * FROM customer WHERE c_birth_day BETWEEN 1 AND 10; +---+---+---+---+---+---+---+---+---+---+---+---+ | id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered ...
Oid sortOperator, Oid collation, bool nullsFirst);static void show_tablesample(TableSampleClause *tsc, PlanState *planstate, List *ancestors, ExplainState *es);static void show_sort_info(SortState *sortstate, ExplainState *es);static void show_hash_info(HashState *hashstate, ExplainState *es)...
Hi Experts,I've been using the BITOR function in a formula - but the weird thing is that it sometimes gives me a #NUM! error when processing two digits where...
Explain analyze, can give the detail time cost of each task Type of change New Feature (non-breaking change which adds functionality) JinHai-CN added 2 commits March 6, 2025 15:19 Fix explain analyze 1 … c163b94 Add plan fragment in explain operator … ac0deb2 JinHai-CN added...
- cost is the local operator cost and shows the estimated time for the operation to run, in ms.- accumulative_cost is the sum of all seen operations in the plan including summed values for parallel operations, in ms.- average_rowsize is the estimated average row size (in bytes) of ...
-f O = Formatting flags (O = Operator summary) -g[x] [O[T|F]IC] - Graph plan. x - turn off options (default is to turn them on) Options include: O = only generate graph T = Include Total Cost in graph F = Include First Tuple Cost in graph ...
Apache Pig Explain Operator - Learn how to use the Explain operator in Apache Pig to understand and optimize your data processing tasks effectively.
BatchGet RPC request is sent in the prefetch step. Get RPC request is sent when the insert on duplicate statement executes duplicate update. backoff: Contains different types of backoff and the total waiting time of backoff. IndexJoin The IndexJoin operator has 1 outer w...
Across the stable density stratification of the abyssal ocean, deep dense water is slowly propelled upward by sustained, though irregular, turbulent mixing. The resulting mean upwelling determines large-scale oceanic circulation properties like heat and
if(line.size() > 0)//line size gets the number of characters in a string, right?{ ss.clear(); ss.str(line);//Why do we clear the string? Is that what ss.clear does?cout <<": ";while(ss.good())//Variable? (ss.good){ ss >> word;//What does the command ss do? Is ...