| /********************************************************************** |
| // @@@ START COPYRIGHT @@@ |
| // |
| // 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. |
| // |
| // @@@ END COPYRIGHT @@@ |
| **********************************************************************/ |
| #ifndef EXP_CLAUSE_H |
| #define EXP_CLAUSE_H |
| |
| /* -*-C++-*- |
| ***************************************************************************** |
| * |
| * File: <file> |
| * Description: |
| * |
| * |
| * Created: 7/10/95 |
| * Language: C++ |
| * |
| * |
| * |
| * |
| ***************************************************************************** |
| */ |
| |
| #include "ExpError.h" |
| #include "exp_attrs.h" |
| |
| #include "Collections.h" |
| #include "exp_space.h" |
| #include "Int64.h" |
| #include "OperTypeEnum.h" |
| #include "ExpAtp.h" |
| #include "exp_expr.h" |
| |
| // Forware external declaractions |
| // |
| class PCILink; |
| |
| #define ADJUST(offset, alignment) ((offset > 0) ? \ |
| (((offset - 1)/alignment) + 1) * alignment : \ |
| offset); |
| |
| class ex_globals; |
| typedef NABasicPtrTempl<ex_globals> ExGlobalsPtr; |
| |
| // ----------------------------------------------------------------------- |
| // Classes defined in this file |
| // ----------------------------------------------------------------------- |
| class ex_clause; |
| |
| #pragma warning ( disable : 4251 ) |
| |
| ///////////////////////////////////////////////// |
| // Class ex_clause |
| ///////////////////////////////////////////////// |
| #pragma nowarn(1506) // warning elimination |
| class SQLEXP_LIB_FUNC ex_clause : public NAVersionedObject { |
| public: |
| // Possible types of clauses |
| // (these codes must remain invariant across future versions) |
| enum clause_type { |
| CLAUSE_ANCHOR =-1, |
| AGGREGATE_TYPE = 1, |
| ARITH_TYPE = 2, |
| BOOL_RESULT_TYPE = 3, |
| BOOL_TYPE = 4, |
| BRANCH_TYPE = 5, |
| COMP_TYPE = 6, |
| CONV_TYPE = 7, |
| FUNCTION_TYPE = 8, |
| INOUT_TYPE = 9, |
| LIKE_TYPE =10, |
| NOOP_TYPE =11, |
| UN_LOGIC_TYPE =12, |
| ARITH_SUM_TYPE =13, |
| ARITH_COUNT_TYPE =14, |
| MATH_FUNCTION_TYPE =15, |
| // we use most of the above enumerated constants as ex_clause classID's. |
| // we also use the following enumerated constants as classID's of |
| // ex_clause derived classes. |
| // NAVersionedObject::driveUnpack relies on classID to find and set the |
| // unpacked object's virtual function table pointer; so, classID must |
| // be a "flattened" unique class id. That is, no two ex_clause-derived |
| // classes can have the same classID. |
| LIKE_CLAUSE_CHAR_ID =16, |
| LIKE_CLAUSE_DOUBLEBYTE_ID =17, |
| FUNC_ASCII_ID =18, |
| FUNC_CHAR_ID =19, |
| FUNC_CHAR_LEN_ID =20, |
| FUNC_CHAR_LEN_DOUBLEBYTE_ID =21, |
| FUNC_CVT_HEX_ID =22, |
| FUNC_OCT_LEN_ID =23, |
| FUNC_POSITION_ID =24, |
| FUNC_POSITION_DOUBLEBYTE_ID =25, |
| FUNC_CONCAT_ID =26, |
| FUNC_REPEAT_ID =27, |
| FUNC_REPLACE_ID =28, |
| FUNC_SUBSTR_ID =29, |
| FUNC_SUBSTR_DOUBLEBYTE_ID=30, |
| FUNC_TRIM_ID =31, |
| FUNC_TRANSLATE_ID =32, |
| FUNC_TRIM_DOUBLEBYTE_ID =33, |
| FUNC_LOWER_ID =34, |
| FUNC_UPPER_ID =35, |
| FUNC_UPPER_UNICODE_ID =36, |
| FUNC_LOWER_UNICODE_ID =37, |
| FUNC_CURRENT_TIMESTAMP_ID=38, |
| FUNC_ENCODE_ID =39, |
| FUNC_EXPLODE_VARCHAR_ID =40, |
| FUNC_HASH_ID =41, |
| FUNC_HASHCOMB_ID =42, |
| FUNC_BITMUX_ID =43, |
| FUNC_REPLACE_NULL_ID =44, |
| FUNC_MOD_ID =45, |
| FUNC_MASK_ID =47, |
| FUNC_ABS_ID =48, |
| FUNC_BOOL_ID =49, |
| FUNC_CONVERTTIMESTAMP_ID =50, |
| FUNC_DATEFORMAT_ID =51, |
| FUNC_DAYOFWEEK_ID =52, |
| FUNC_EXTRACT_ID =53, |
| FUNC_JULIANTIMESTAMP_ID =54, |
| FUNC_EXEC_COUNT_ID =55, |
| FUNC_CURR_TRANSID_ID =56, |
| FUNC_USER_ID =57, |
| FUNC_ANSI_USER_ID =58, |
| FUNC_VARIANCE_ID =59, |
| FUNC_STDDEV_ID =60, |
| FUNC_RAISE_ERROR_ID =61, |
| FUNC_RANDOMNUM_ID =62, |
| FUNC_HDPHASH_ID =63, |
| FUNC_HDPHASHCOMB_ID =64, |
| FUNC_PROGDISTRIB_ID =65, |
| FUNC_UNPACKCOL_ID =66, |
| FUNC_PACK_ID =67, |
| FUNC_RANGE_LOOKUP_ID =68, |
| FUNC_MATH_ID =69, |
| AGGR_ONE_ROW_ID =70, |
| AGGR_ANY_TRUE_MAX_ID =71, |
| AGGR_MIN_MAX_ID =72, |
| FUNC_OFFSET_ID =73, |
| FUNC_RAND_SELECTION_ID =74, |
| FUNC_ROWSETARRAY_SCAN_ID =75, |
| FUNC_ROWSETARRAY_ROW_ID =76, |
| FUNC_ROWSETARRAY_INTO_ID =77, |
| FUNC_UNIQUE_EXECUTE_ID_ID=78, |
| FUNC_INTERNALTIMESTAMP_ID=79, |
| FUNC_GET_TRIGGERS_STATUS_ID=80, |
| FUNC_GET_BIT_VALUE_AT_ID =81, |
| FUNC_PROGDISTKEY_ID =82, |
| FUNC_PAGROUP_ID =83, |
| FUNC_SHIFT_ID =84, |
| FUNC_GENERICUPDATEOUTPUT_ID=85, |
| FUNC_IS_BITWISE_AND_TRUE =86, |
| FUNC_NULLIFZERO =87, |
| FUNC_NVL =88, |
| FUNC_HASH2_DISTRIB_ID =89, |
| FUNC_EXTRACT_COLUMNS =90, |
| FUNC_AUDIT_ROW_IMAGE =91, |
| FUNC_HEADER =92, |
| FUNC_QUERYID_EXTRACT =93, |
| FUNC_BIT_OPER_ID =94, |
| FUNC_TOKENSTR_ID =95, |
| LOB_TYPE =96, |
| LOB_INSERT =97, |
| LOB_SELECT =98, |
| LOB_DELETE =99, |
| LOB_UPDATE =100, |
| LOB_CONVERT =101, |
| LOB_CONVERTHANDLE =102, |
| LOB_LOAD =103, |
| LOB_FUNC_TYPE =104, |
| LOB_FUNC_SUBSTR =105, |
| FUNC_HIVEHASH_ID =106, |
| FUNC_HIVEHASHCOMB_ID =107, |
| FUNC_UNIQUE_ID = 108, |
| FUNC_HBASE_COLUMN_LOOKUP = 109, |
| FUNC_HBASE_COLUMNS_DISPLAY = 110, |
| FUNC_HBASE_COLUMN_CREATE = 111, |
| FUNC_CAST_TYPE = 112, |
| FUNC_SEQUENCE_VALUE = 113, |
| FUNC_PIVOT_GROUP = 114, |
| FUNC_ROWNUM = 115, |
| FUNC_HBASE_TIMESTAMP = 116, |
| FUNC_HBASE_VERSION = 117, |
| FUNC_ISIP_ID = 118, |
| FUNC_INETATON_ID = 119, |
| FUNC_INETNTOA_ID = 120, |
| AGGR_GROUPING_ID = 121, |
| FUNC_CRC32_ID = 122, |
| FUNC_MD5_ID = 123, |
| FUNC_SHA1_ID = 124, |
| FUNC_SHA2_ID = 125, |
| FUNC_SOUNDEX_ID = 126, |
| REGEXP_CLAUSE_CHAR_ID = 127, |
| FUNC_JSON_ID = 128, |
| FUNC_AES_ENCRYPT = 129, |
| FUNC_AES_DECRYPT = 130 |
| }; |
| |
| // max number of operands (including result) in a clause. |
| // Result occupies the first position(index = 0) in the |
| // Attributes array 'op'. See exp_expr::eval in file |
| // exp_eval.C for details on use of these enums. |
| enum ClauseConstants { |
| MAX_OPERANDS = 5, |
| MAX_TEMP_OPERAND_LEN = 64, |
| NULL_HASH = 666654765, |
| SQL_INT32_MAX = 2147483647 |
| }; |
| |
| // Construction, Destruction |
| // |
| NA_EIDPROC ex_clause() : NAVersionedObject(CLAUSE_ANCHOR), |
| nextClause_(NULL), op_(NULL) {}; |
| NA_EIDPROC ex_clause(clause_type type_, |
| OperatorTypeEnum operType_, |
| short num_operands_, |
| Attributes ** op_, |
| Space * space_); |
| NA_EIDPROC ~ex_clause(); |
| |
| // Bookkeeping Accessors |
| // |
| NA_EIDPROC void generateClause(char *pt); |
| NA_EIDPROC inline clause_type getType(); |
| NA_EIDPROC inline void setType(clause_type t); |
| |
| NA_EIDPROC inline OperatorTypeEnum getOperType() |
| {return (OperatorTypeEnum)operType_;}; |
| |
| // PCode Methods |
| // |
| // getPCILink - returns the link to the PCI List for this clause |
| // |
| // setPCIList - sets the link to the PCI List for this clause |
| // |
| // pCodeGenerate - virtual functions used to generate the PCode for |
| // a clause. If not redefined, the default implementations generates |
| // PCode to set up for and call the clause->eval() method. |
| // |
| NA_EIDPROC inline PCILink *getPCIList() { return pciLink_; }; |
| NA_EIDPROC inline void setPCIList(PCILink *pciLink) { |
| pciLink_ = pciLink; }; |
| NA_EIDPROC virtual ex_expr::exp_return_type pCodeGenerate(Space *space, |
| UInt32 flags); |
| |
| // Null Processing Methods |
| // |
| // isNullInNullOut - Pure virtual function which returns TRUE if the clause |
| // semantics are any NULL input produces a NULL result. |
| // |
| // isNullRelevant - Pure virtual function which returns TRUE if there |
| // is processing for NULLs other than in eval. |
| // |
| // isAnyInputNullable - Returns TRUE if any of the input operands are |
| // nullable. |
| // |
| // isAnyOutputNullable - Returns TRUE if any of the output operands are |
| // nullable. |
| // |
| // isAnyOperandNullable - Returns TRUE is any of the input or output |
| // operands are nullable. |
| // |
| // useProcessNulls - Returns TRUE is processNulls should be called |
| // for this clause. |
| // |
| // setSpecialNulls - Sets flags to indicate that NULL should compare as |
| // bigger than maximum value (for sorting) |
| // |
| // isSpecialNulls - Return TRUE if NULL should compare bigger than maximum |
| // value |
| // |
| NA_EIDPROC virtual Int32 isNullInNullOut() const |
| { return 1;}; // must be redefined in derived classes |
| NA_EIDPROC virtual Int32 isNullRelevant() const |
| { return 1;}; // must be redefined in derived classes |
| NA_EIDPROC inline Int32 isAnyInputNullable() { |
| return flags_ & ANY_INPUT_NULLABLE; }; |
| |
| NA_EIDPROC inline Int32 isAnyOutputNullable() { |
| return flags_ & ANY_OUTPUT_NULLABLE; }; |
| |
| NA_EIDPROC inline Int32 isAnyOperandNullable() { |
| return flags_ & (ANY_INPUT_NULLABLE | ANY_OUTPUT_NULLABLE); }; |
| |
| NA_EIDPROC inline Int32 useProcessNulls() { |
| return flags_ & USE_PROCESS_NULLS; |
| }; |
| |
| NA_EIDPROC void setProcessNulls() { |
| if(isNullRelevant() && (flags_ & (ANY_INPUT_NULLABLE|ANY_OUTPUT_NULLABLE))) |
| flags_ |= USE_PROCESS_NULLS; |
| }; |
| NA_EIDPROC void setSpecialNulls() { flags_ |= SPECIAL_NULLS; }; |
| NA_EIDPROC Int32 isSpecialNulls() { return (flags_ & SPECIAL_NULLS) != 0; }; |
| |
| NABoolean noPCodeAvailable() { return (flags_ & NO_PCODE_AVAILABLE) != 0; }; |
| NA_EIDPROC void setNoPCodeAvailable(NABoolean v) |
| { |
| (v ? flags_ |= NO_PCODE_AVAILABLE : flags_ &= ~NO_PCODE_AVAILABLE); |
| }; |
| |
| NA_EIDPROC NABoolean handleIndirectVC() { return (flags_ & HANDLE_INDIRECT_VC) != 0; }; |
| NA_EIDPROC void setHandleIndirectVC(NABoolean v) |
| { |
| (v ? flags_ |= HANDLE_INDIRECT_VC : flags_ &= ~HANDLE_INDIRECT_VC); |
| }; |
| |
| NA_EIDPROC NABoolean forInsertUpdate() { return (flags_ & FOR_INSERT_UPDATE) != 0; }; |
| NA_EIDPROC void setForInsertUpdate(NABoolean v) |
| { |
| (v ? flags_ |= FOR_INSERT_UPDATE : flags_ &= ~FOR_INSERT_UPDATE); |
| }; |
| |
| NA_EIDPROC inline Int32 getAllFlags() { return flags_ ; }; |
| |
| // |
| // SPECIAL TRUNCATION FLAG |
| // |
| // this flag is set if a character string casting is done when a larger |
| // string is assigned to a smaller string size |
| // |
| // The following two methods are used only in ex_conv_clause objects |
| |
| NA_EIDPROC void setCheckTruncationFlag() |
| {flags_ |= CHECK_STRING_TRUNCATION;}; |
| NA_EIDPROC Int32 getCheckTruncationFlag() |
| {return (flags_ & CHECK_STRING_TRUNCATION); } |
| |
| NA_EIDPROC void setNoTruncationWarningsFlag() |
| {flags_ |= NO_STRING_TRUNCATION_WARNINGS; }; |
| NA_EIDPROC Int32 getNoTruncationWarningsFlag() |
| { return (flags_ & NO_STRING_TRUNCATION_WARNINGS); } |
| |
| // Branch handling |
| // |
| // isBranchingClause - Virtual function which returns TRUE if the clause |
| // may change the flow on control (ie. branch) |
| // |
| // isBranchTarget - Returns TRUE is this clause is the target |
| // of a branch clause. |
| // |
| // getNumberBranchTargets - Returns the number of branch clauses |
| // which target this clause. |
| // |
| // addBranchTarget - Increments the number of branch clauses |
| // which target this clause. |
| // |
| NA_EIDPROC virtual Int32 isBranchingClause() const { return 0; }; |
| NA_EIDPROC Int32 isBranchTarget() const { return numberBranchTargets_ != 0; }; |
| NA_EIDPROC Int32 getNumberBranchTargets() { return numberBranchTargets_; }; |
| NA_EIDPROC void setNumberBranchTargets(Int32 num) { numberBranchTargets_ = num; }; |
| NA_EIDPROC void addBranchTarget() { numberBranchTargets_++; }; |
| |
| |
| NA_EIDPROC unsigned short &clauseNum() { return clauseNum_; } |
| |
| // Operand Accessors |
| // |
| NA_EIDPROC inline short getNumOperands(); |
| NA_EIDPROC inline Attributes *getOperand(short operand_num); |
| NA_EIDPROC inline AttributesPtr *getOperand(); |
| NA_EIDPROC inline void setOperand(AttributesPtrPtr& attr_); |
| |
| // Clause List Accessors |
| // |
| NA_EIDPROC inline ex_clause *getNextClause(); |
| NA_EIDPROC inline void setNextClause(ex_clause *clause_); |
| NA_EIDPROC inline void setNextPackedClause(Int64 offset); |
| NA_EIDPROC inline void setNext(Lng32 next_clause_offset); |
| NA_EIDPROC inline void setLastClause(); |
| |
| // Packing, Unpacking, and Fixup |
| // |
| NA_EIDPROC virtual Long pack(void *); |
| NA_EIDPROC virtual Lng32 unpack(void *, void * reallocator); |
| NA_EIDPROC Long packClause(void *, Lng32 size); |
| NA_EIDPROC Lng32 unpackClause(void *base, void * reallocator); |
| |
| virtual Lng32 initClause(){return 0;}; |
| |
| // SpaceCompOnly: if TRUE, then compute space requirement only. |
| // Do not make any changes to the generated expressions, |
| // (like assigning tempsArea, assigning generated pcode, etc). |
| NA_EIDPROC virtual ex_expr::exp_return_type fixup(Space * space = 0, |
| CollHeap * exHeap = 0, |
| char * constants_area = 0, |
| char * temps_area = 0, |
| char * persistentArea = 0, |
| short = 0, |
| NABoolean spaceCompOnly = FALSE); |
| |
| // Execution |
| // |
| // isEvalRelevant - Returns true if eval() does any work. The eval() |
| // methods for some clauses do nothing but serve as placeholders. These |
| // clauses can be identified using this routine. |
| // |
| // eval - Actually does the work based on the pointers in the op_data |
| // vector. The op_data vector has the following layout: |
| // |
| // 0 - pointer to result null indicator |
| // 1 - TRUE if 1st arg is not NULL |
| // 2 - TRUE if 2nd arg is not NULL |
| // MAX_OPERANDS-1 - TRUE if MAX_OPERANDS-2(th) arg is not NULL |
| // |
| // MAX_OPERANDS+0 - pointer to result varchar length (NULL for non-varchar) |
| // MAX_OPERANDS+1 - pointer to 1st arg varchar length (NULL for non-varchar) |
| // MAX_OPERANDS+2 - pointer to 2nd arg varchar length (NULL for non-varchar) |
| // 2*MAX_OPERANDS-1 - pointer to 2*MAX_OPERANDS-2(th) arg |
| // |
| // 2*MAX_OPERANDS+0 - pointer to result attribute |
| // 2*MAX_OPERANDS+1 - pointer to 1st arg attribute (maybe null for NULL attr) |
| // 2*MAX_OPERANDS+2 - pointer to 2nd arg attribute (maybe null for NULL attr) |
| // 3*MAX_OPERANDS-1 - pointer to 3*MAX_OPERANDS-2(th) arg |
| // |
| // The processNulls method gets passed &(op_data[0]) so that addressing |
| // the null indicators is done with op_data[0], op_data[1], etc. |
| // The method returns EXPR_ERROR for attempt to assign a NULL to a nonnullable |
| // column, EXPR_NULL for NULL successfully processed (assigned to a nullable |
| // column), EXPR_OK for no error and no null -- caller must continue eval. |
| // |
| // The eval method gets passed &(op_data[2*MAX_OPERANDS+0]) so that |
| // addressing the attributes is done with op_data[0], op_data[1], etc. The |
| // null and varchar information is accessed using negative offsets: |
| // op_data[-2*MAX_OPERANDS], etc. |
| // |
| // |
| NA_EIDPROC virtual Int32 isEvalRelevant() const |
| { return 1;}; // must be redefined in derived classes |
| NA_EIDPROC virtual ex_expr::exp_return_type processNulls(char *op_data[], |
| CollHeap * = 0, |
| ComDiagsArea ** = 0); |
| NA_EIDPROC virtual ex_expr::exp_return_type eval(char *op_data[], |
| CollHeap * = 0, |
| ComDiagsArea ** = 0); |
| |
| // Display |
| // |
| NA_EIDPROC virtual void displayContents(Space * space, const char * displayStr, |
| Int32 clauseNum, char * constsArea); |
| |
| NA_EIDPROC void displayContents(Space * space, const char * displayStr, |
| Int32 clauseNum, char * constsArea, |
| UInt32 clauseFlags, |
| Int16 instruction = -1, |
| const char * instrText = NULL); |
| |
| NA_EIDPROC static void clearVOA(Attributes *attr, atp_struct *atp) |
| { |
| CollIndex atpIdx = attr->getAtpIndex(); |
| |
| if (attr->isSQLMXDiskFormat() && (attr->getVCIndicatorLength() > 0)) |
| str_pad((atp->getTupp(atpIdx)).getDataPointer(), sizeof(Int32), 0); |
| } |
| |
| |
| NA_EIDPROC static void setRowLength(Attributes * attr, |
| atp_struct * atp, |
| UInt32 * rowLen, |
| UInt32 newLength) |
| { |
| if (attr->isSQLMXAlignedFormat()) |
| { |
| *rowLen = ExpAlignedFormat::adjustDataLength( |
| atp->getTupp(attr->getAtpIndex()).getDataPointer(), |
| newLength, |
| ExpAlignedFormat::ALIGNMENT |
| ); |
| } |
| else |
| *rowLen = newLength; |
| } |
| |
| |
| NA_EIDPROC static void setVoaData(char *dataPtr, UInt32 voaOffset, UInt32 value) |
| { |
| assert(dataPtr); |
| if (voaOffset != ExpOffsetMax) |
| str_cpy_all(dataPtr + voaOffset, (char *)&value, ExpVoaSize); |
| } |
| |
| NA_EIDPROC static void evalSetRowLength(Attributes *attr, |
| atp_struct *atp, |
| UInt32 *rowLen, |
| UInt32 newLength) |
| { |
| // Only adjust the length if using aligned row format. |
| // If the row lengths are equal, then use the computed at codegen it is |
| // adjusted already for alignment purposes. |
| if (attr && attr->isSQLMXAlignedFormat() && (*rowLen != newLength)) |
| { |
| *rowLen = ExpAlignedFormat::adjustDataLength( |
| (char*)atp->getTupp(attr->getAtpIndex()).getDataPointer(), |
| newLength, |
| ExpAlignedFormat::ALIGNMENT |
| ); |
| } |
| else |
| *rowLen = newLength; |
| } |
| |
| NA_EIDPROC void copyOperands(ex_clause* clause, Space* space); |
| |
| // --------------------------------------------------------------------- |
| // Redefinition of methods inherited from NAVersionedObject. |
| // --------------------------------------------------------------------- |
| NA_EIDPROC virtual unsigned char getClassVersionID() |
| { |
| return 1; |
| } |
| |
| NA_EIDPROC virtual void populateImageVersionIDArray() |
| { |
| setImageVersionID(0,getClassVersionID()); |
| } |
| |
| NA_EIDPROC virtual short getClassSize() { return (short)sizeof(*this); } |
| NA_EIDPROC virtual char *findVTblPtr(short classID); |
| // --------------------------------------------------------------------- |
| |
| NA_EIDPROC void setExeGlobals(ex_globals * glob) |
| { |
| globals_ = glob; |
| } |
| |
| Int16 getInstrArrayIndex() { return instrArrayIndex_; } |
| void setInstrArrayIndex(Int16 index) { instrArrayIndex_ = index; } |
| |
| protected: |
| NA_EIDPROC ex_globals * getExeGlobals() |
| { |
| return globals_; |
| } |
| |
| private: |
| ExClausePtr nextClause_; // 00-07 |
| PCILink *pciLink_; // 08-15 |
| #ifndef NA_64BIT |
| char fillerpciLink_[4]; // 12-15 |
| #endif |
| AttributesPtrPtr op_; // 16-23 |
| UInt16 clauseNum_; // 24-25 |
| UInt16 numberBranchTargets_; // 26-27 |
| UInt32 flags_; // 28-31 |
| enum flags_type { |
| SPECIAL_NULLS = 0x0001, // Compare NULLs as values |
| ANY_INPUT_NULLABLE = 0x0002, // Nullable Input |
| ANY_OUTPUT_NULLABLE = 0x0004, // Nullable Ouput |
| USE_PROCESS_NULLS = 0x0008, // Use processNulls |
| CHECK_STRING_TRUNCATION = 0x0010, // check for string truncation |
| NO_PCODE_AVAILABLE = 0x0020, |
| NO_STRING_TRUNCATION_WARNINGS = 0x0040, |
| HANDLE_INDIRECT_VC = 0x0080, |
| FOR_INSERT_UPDATE = 0x0100 |
| }; |
| Int16 numOperands_; // 32-33 |
| Int16 /*OperatorTypeEnum*/ operType_; // 34-35 |
| Int16 /*clause_type*/ clauseType_; // 36-37 |
| |
| // index into static clause array struct containing details about |
| // this clause (datatypes, operation, etc) if derived clause has |
| // this array defined. |
| // See derived clauses for details. |
| Int16 instrArrayIndex_; // 48-49 |
| |
| // this field is set at runtime when this clause is fixed up. |
| // It is used in eval for cases where an expression needs to access |
| // executor globals. |
| // Not valid for EID expressions. |
| // Only used for SQ. |
| ExGlobalsPtr globals_; // 40-47 |
| |
| // --------------------------------------------------------------------- |
| // Fillers for potential future extensions without changing class size. |
| // When a new member is added, size of this filler should be reduced so |
| // that the size of the object remains the same (and is modulo 8). |
| // --------------------------------------------------------------------- |
| char fillers_[16]; // 52-63 |
| }; |
| #pragma warn(1506) // warning elimination |
| |
| #pragma warning ( default : 4251 ) |
| |
| inline ex_clause::clause_type ex_clause::getType(){ |
| |
| return (clause_type)clauseType_; |
| }; |
| |
| inline void ex_clause::setType(ex_clause::clause_type t){ |
| clauseType_ = t; |
| }; |
| |
| inline void ex_clause::setLastClause(){ |
| nextClause_ = 0; |
| }; |
| |
| inline short ex_clause::getNumOperands(){ |
| return numOperands_; |
| }; |
| |
| inline Attributes *ex_clause::getOperand(short operand_num){ |
| return op_[operand_num]; |
| }; |
| |
| inline AttributesPtr *ex_clause::getOperand(){ |
| return op_; |
| }; |
| |
| inline void ex_clause::setOperand(AttributesPtrPtr& attr) |
| { |
| op_ = attr; |
| }; |
| |
| inline void ex_clause::setNextClause(ex_clause *clause_){ |
| nextClause_ = clause_; |
| }; |
| |
| inline ex_clause *ex_clause::getNextClause(){ |
| return nextClause_; |
| }; |
| |
| inline void ex_clause::setNextPackedClause(Int64 offset){ |
| nextClause_ = offset; |
| }; |
| |
| // functions to compare two strings |
| NA_EIDPROC Int32 charStringCompareWithPad(char* in_s1, Int32 length1, |
| char* in_s2, Int32 length2, |
| char space); |
| |
| NA_EIDPROC Int32 wcharStringCompareWithPad(NAWchar* s1, Int32 length1, |
| NAWchar* s2, Int32 length2, |
| NAWchar space); |
| #endif |
