* may have seen a different subset of batches and we want to find the * highest memory usage for any one batch across all batches. */ if (hashstate->shared_info) { SharedHashInfo *shared_info = hashstate->shared_info; int i; for (i = 0; i < shared_info->num_workers; ++i) ...
(AWR) SQL Tuning Set (STS) SQL Plan Baseline (SPM) Using the EXPLAIN PLAN Command and the DBMS_XPLAN.DISPLAY Function The following examples illustrate how to generate and display an execution plan for our original SQL statement using the different functions provided in the DBMS_...
If there is an index and we use a query with an indexable WHERE condition,EXPLAIN might show a different plan: EXPLAIN SELECT * FROM foo WHERE i = 4; QUERY PLAN --- Index Scan using fi on foo (cost=0.00..5.98 rows=1 width=4) Index Cond: (i = 4) (2 rows) Here is the same...
HashAggregate: Data is hash-calculated, distributed to different shards based on hash values, and then aggregated by using the Gather operator. This type of aggregate is most commonly used. EXPLAIN SELECT l_orderkey,count(l_linenumber) FROM public.holo_lineitem_100g GROUP BY l_orderkey; Mu...
For DEPENDENT SUBQUERY, the subquery is re-evaluated only once for each set of different values of the variables from its outer context. For UNCACHEABLE SUBQUERY, the subquery is re-evaluated for each row of the outer context. When you specify FORMAT=JSON with EXPLAIN, the output has no ...
HASH JOIN TABLE ACCESS FULL EMP [ANALYZED] VIEW SORT GROUP BY INDEX FULL SCAN BE_IX In this case the inline view tmp which contains an aggregate function cannot be merged into the main query. The explain plan shows this as a view step. ...
Suppose that MIN(c1) can be retrieved by reading one index row and MIN(c2) can be retrieved by reading one row from a different index. That is, for each column c1 and c2, there exists an index where the column is the first column of the index. In this case, one row is returned,...
C# Function to Check if File Is Open C# function to play a base64 encoded mp3 C# generate a 15 digit always distinct numeric value C# Get a file name from Base64 string C# Get all text displayed in a different window C# Get Available IP From CIDR C# get content of invoke powershell...
Solved! :) I was originally using version 1.2 of the Skein hash function. Version 1.3 uses different constants and yields different results. The almamater page seems to be using version 1.3 -- my calculator now matches Randall's hashes.--Theodric (talk) 03:34, 2 April 2013 (UTC) Whe...
The full name of SPI is Service Provider Interface, and the corresponding Chinese is the service discovery mechanism. SPI is similar to a pluggable mechanism. First, an interface or a convention needs to be defined, and then different scenarios can be implemented. The caller does not need to ...