| /*------------------------------------------------------------------------- |
| * |
| * analyzeutils.h |
| * |
| * Header file for utils functions in analyzeutils.c |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *------------------------------------------------------------------------- |
| */ |
| |
| #ifndef ANALYZEUTILS_H |
| #define ANALYZEUTILS_H |
| |
| #include "utils/array.h" |
| |
| /* extern functions called by commands/analyze.c */ |
| extern void aggregate_leaf_partition_MCVs(Oid relationOid, |
| AttrNumber attnum, |
| unsigned int nEntries, |
| ArrayType **result); |
| extern void aggregate_leaf_partition_histograms(Oid relationOid, |
| AttrNumber attnum, |
| unsigned int nEntries, |
| ArrayType **result); |
| extern bool datumCompare(Datum d1, Datum d2, Oid opFuncOid); |
| |
| /* |
| * Helper functions for ANALYZE. |
| */ |
| |
| /** |
| * Drops the sample table created during ANALYZE. |
| */ |
| extern void dropSampleTable(Oid sampleTableOid, bool isExternal); |
| |
| /** |
| * Generates a table name for the auxiliary sample table that may be created during ANALYZE. |
| */ |
| extern char* temporarySampleTableName(Oid relationOid, char* prefix); |
| |
| /* Convenience */ |
| extern ArrayType * SPIResultToArray(int resultAttributeNumber, MemoryContext allocationContext); |
| |
| /* spi execution helpers */ |
| typedef void (*spiCallback)(void *clientDataOut); |
| extern void spiExecuteWithCallback(const char *src, bool read_only, long tcount, |
| spiCallback callbackFn, void *clientData); |
| |
| typedef struct |
| { |
| int numColumns; |
| MemoryContext memoryContext; |
| ArrayType ** output; |
| } EachResultColumnAsArraySpec; |
| |
| extern void spiCallback_getEachResultColumnAsArray(void *clientData); |
| extern void spiCallback_getProcessedAsFloat4(void *clientData); |
| extern void spiCallback_getSingleResultRowColumnAsFloat4(void *clientData); |
| |
| #endif /* ANALYZEUTILS_H */ |