<location>设置用户帐户 :操作将在其中发生的节点或分发。 选项有:“Control”、“ComputeNode”、“AllComputeNodes”、“AllDistributions”、“SubsetDistributions”、“Distribution”和“SubsetNodes”。 设置用户帐户 :随机移动的源数据。 <destination_table>...
Here if first checks the condition either the a is greater than b if yes then it will print a suppose if a is not greater than b then it will be print b because we specify the b in the else statement. 2) if-elseif The if-elseif is similar to the if-else but here the first ...
ExplainDummyGroup("Utility Statement", NULL, es); }}/* * ExplainOnePlan - * given a planned query, execute it if needed, and then print * EXPLAIN output * * "into" is NULL unless we are explaining the contents of a CreateTableAsStmt, * in which case executing the query should resul...
However the let statement is far from clear. I understand is has block scope, but why does THAT matter in the...Omit files or directories from revision control? I'd like to omit an app-specific directory from the revision control check done by Origen: Is there something similar to a ....
However the let statement is far from clear. I understand is has block scope, but why does THAT matter in the...Omit files or directories from revision control? I'd like to omit an app-specific directory from the revision control check done by Origen: Is there something similar to a ....
In the SQL statement, tbl1.a=tbl2.c is configured to join tables. However, the distribution key of the tbl1 table is a and that of the tbl2 table is d. As a result, data is shuffled during the join operation. Optimization suggestion: If an SQL statement contains the redistribution ...
I can't explain such a statement by him on the basis of logic. He must have blown his top. 我从逻辑推理方面解释不了他讲的这番话,他想必是神经错乱了. 《现代汉英综合大词典》 He will explain it fully once and for all. 他将把它充分地解释一次就此了结. 《简明英汉词典》 Many theories pur...
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...
in the carousel","possibleValues":null,"control":"INPUT","__typename":"PropDefinition"}],"__typename":"ComponentProperties"},"form":{"fields":[{"id":"widgetChooser","validation":null,"noValidation":null,"dataType":"STRING","list":null,"control":null,"defaultValue":null,"l...
C: 在图形中包含每个运算符的期望输出基数 (元组数)。 注:允许这些选项的任何组合,但 F 和 T 除外,它们是互斥的。 抽取SQL 类型为 VARCHAR (2048) 的输出参数,其中包含可用于针对 EXPLAIN_STATEMENT 抽取格式化数据的 SQL 语句。 使用说明 参数explain_schema , explain_requester , explain_time , source_sche...