Name of column 1 to the name of column N –This is defined as a defined column at the time of value insertion into the table using conflict. Thus, we can select multiple columns at the same time to insert values into the table. Value of column 1 to the value of column N –This is...
ON CONFLICT (conflict_column) DO NOTHING | DO UPDATE SET column1 = value1, column2 = value2, ...; In this syntax: table_name: This is the name of the table into which you want to insert data. (column1, column2, ...): The list of columns you want to insert values into the ...
而是评分最高的帖子。Use multiple conflict_target in ON CONFLICT clause
Multiple rows can be inserted by separating each set of values with a comma. Insert with Default ValuesThis example demonstrates how to insert a row using default values for some columns: insert_with_defaults.sql -- CREATE TABLE books ( -- book_id INTEGER PRIMARY KEY, -- title VARCHAR(100...
/* * heap_multi_insert - insert multiple tuples into a heap * * This is like heap_insert(), but inserts multiple tuples in one operation. * That's faster than calling heap_insert() in a loop, because when multiple * tuples can be inserted on a single page, we can write just ...
* DELETE always contains "junk" target columns to identify the exact row * to update or delete, which would be confusing in this context. So, we * suppress it in all the cases. */ if (IsA(plan, ForeignScan) && ((ForeignScan *) plan)->operation != CMD_SELECT) return; /* Set up...
When using range partitioning, the partition key can includemultiplecolumnsorexpressions,butfor list partitioning, the partition key must consist of a single columnorexpression. If nobtreeoperator class is specified when creating a partitioned table, the defaultbtreeoperator class for the datatype will...
postgresql({host:port,database,table,user,password[,schema,[,on_conflict]]|named_collection[,option=value[,..]]}) Parameters host:port— PostgreSQL server address. database— Remote database name. table— Remote table name. user— PostgreSQL user. ...
Columns are specified in parentheses after the table name. VALUES is followed by the data you want to insert, which corresponds to each column specified. Insert Multiple Rows: To insert multiple rows of data in one statement: INSERT INTO table_name (column1, column2, ...) ...
Datum values[NUM_LOCK_STATUS_COLUMNS]; ... values[12] = CStringGetTextDatum(GetLockmodeName(instance->locktag.locktag_lockmethodid, mode)); ... } src/backend/storage/lmgr/lock.c/* * Fetch the lock method table associated with a given lock */LockMethod...