database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-08 14:02:16 +03:00
Code Activity

Enhanced display of register ranges in the auxiliary comments added to EXPLAIN.

Browse Source 
FossilOrigin-Name: d6b0c39281d0751ecec04d7c19d9d2931d133e8e
This commit is contained in:
drh
2013-10-30 00:25:03 +00:00
parent 81316f8908
commit f63552b258
4 changed files with 64 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/vdbe.c
View File

@@ -1035,7 +1035,7 @@ case OP_Variable: { /* out2-prerelease */
}
/* Opcode: Move P1 P2 P3 * *
** Synopsis: r[P2]=r[P1] N=P3
** Synopsis: r[P2@P3]=r[P1@P3]
**
** Move the values in register P1..P1+P3 over into
** registers P2..P2+P3. Registers P1..P1+P3 are
@@ -1078,7 +1078,7 @@ case OP_Move: {
}
/* Opcode: Copy P1 P2 P3 * *
** Synopsis: r[P2]=r[P1] N=P3
** Synopsis: r[P2@P3]=r[P1@P3]
**
** Make a copy of registers P1..P1+P3 into registers P2..P2+P3.
**
@@ -1400,7 +1400,7 @@ case OP_CollSeq: {
}
/* Opcode: Function P1 P2 P3 P4 P5
** Synopsis: r[P3]=func(r[P2]..) N=P5
** Synopsis: r[P3]=func(r[P2@P5])
**
** Invoke a user function (P4 is a pointer to a Function structure that
** defines the function) with P5 arguments taken from register P2 and
@@ -2513,7 +2513,7 @@ op_column_out:
}
/* Opcode: Affinity P1 P2 * P4 *
** Synopsis: affinity(r[P1]) N=P2
** Synopsis: affinity(r[P1@P2])
**
** Apply affinities to a range of P2 registers starting with P1.
**
@@ -2540,7 +2540,7 @@ case OP_Affinity: {
}
/* Opcode: MakeRecord P1 P2 P3 P4 *
** Synopsis: r[P3]=rec(r[P1]..) N=P2
** Synopsis: r[P3]=mkrec(r[P1@P2])
**
** Convert P2 registers beginning with P1 into the [record format]
** use as a data record in a database table or as a key
@@ -3379,7 +3379,7 @@ case OP_SorterOpen: {
}
/* Opcode: OpenPseudo P1 P2 P3 * P5
** Synopsis: content in r[P2].. N=P3
** Synopsis: content in r[P2@P3]
**
** Open a new cursor that points to a fake table that contains a single
** row of data. The content of that one row in the content of memory
@@ -3422,7 +3422,7 @@ case OP_Close: {
}
/* Opcode: SeekGe P1 P2 P3 P4 *
** Synopsis: key=r[P3].. N=P4
** Synopsis: key=r[P3@P4]
**
** If cursor P1 refers to an SQL table (B-Tree that uses integer keys),
** use the value in register P3 as the key. If cursor P1 refers
@@ -3436,7 +3436,7 @@ case OP_Close: {
** See also: Found, NotFound, Distinct, SeekLt, SeekGt, SeekLe
*/
/* Opcode: SeekGt P1 P2 P3 P4 *
** Synopsis: key=r[P3].. N=P4
** Synopsis: key=r[P3@P4]
**
** If cursor P1 refers to an SQL table (B-Tree that uses integer keys),
** use the value in register P3 as a key. If cursor P1 refers
@@ -3450,7 +3450,7 @@ case OP_Close: {
** See also: Found, NotFound, Distinct, SeekLt, SeekGe, SeekLe
*/
/* Opcode: SeekLt P1 P2 P3 P4 *
** Synopsis: key=r[P3].. N=P4
** Synopsis: key=r[P3@P4]
**
** If cursor P1 refers to an SQL table (B-Tree that uses integer keys),
** use the value in register P3 as a key. If cursor P1 refers
@@ -3464,7 +3464,7 @@ case OP_Close: {
** See also: Found, NotFound, Distinct, SeekGt, SeekGe, SeekLe
*/
/* Opcode: SeekLe P1 P2 P3 P4 *
** Synopsis: key=r[P3].. N=P4
** Synopsis: key=r[P3@P4]
**
** If cursor P1 refers to an SQL table (B-Tree that uses integer keys),
** use the value in register P3 as a key. If cursor P1 refers
@@ -3658,7 +3658,7 @@ case OP_Seek: { /* in2 */
/* Opcode: Found P1 P2 P3 P4 *
** Synopsis: key=r[P3].. N=P4
** Synopsis: key=r[P3@P4]
**
** If P4==0 then register P3 holds a blob constructed by MakeRecord. If
** P4>0 then register P3 is the first of P4 registers that form an unpacked
@@ -3669,7 +3669,7 @@ case OP_Seek: { /* in2 */
** P1 is left pointing at the matching entry.
*/
/* Opcode: NotFound P1 P2 P3 P4 *
** Synopsis: key=r[P3] N=P4
** Synopsis: key=r[P3@P4]
**
** If P4==0 then register P3 holds a blob constructed by MakeRecord. If
** P4>0 then register P3 is the first of P4 registers that form an unpacked
@@ -4639,7 +4639,7 @@ case OP_IdxInsert: { /* in2 */
}
/* Opcode: IdxDelete P1 P2 P3 * *
** Synopsis: key=r[P2]..
** Synopsis: key=r[P2@P3]
**
** The content of P3 registers starting at register P2 form
** an unpacked index key. This opcode removes that entry from the
@@ -4712,7 +4712,7 @@ case OP_IdxRowid: { /* out2-prerelease */
}
/* Opcode: IdxGE P1 P2 P3 P4 P5
** Synopsis: key=r[P3] N=P4
** Synopsis: key=r[P3@P4]
**
** The P4 register values beginning with P3 form an unpacked index
** key that omits the ROWID. Compare this key value against the index
@@ -4727,7 +4727,7 @@ case OP_IdxRowid: { /* out2-prerelease */
** the result is false whereas it would be true with IdxGT.
*/
/* Opcode: IdxLT P1 P2 P3 P4 P5
** Synopsis: key=r[P3] N=P4
** Synopsis: key=r[P3@P4]
**
** The P4 register values beginning with P3 form an unpacked index
** key that omits the ROWID. Compare this key value against the index
@@ -5470,7 +5470,7 @@ case OP_IfZero: { /* jump, in1 */
}
/* Opcode: AggStep * P2 P3 P4 P5
** Synopsis: accum=r[P3] step(r[P2]..) N=P5
** Synopsis: accum=r[P3] step(r[P2@P5])
**
** Execute the step function for an aggregate. The
** function has P5 arguments. P4 is a pointer to the FuncDef
@@ -6088,7 +6088,7 @@ case OP_VRename: {
#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VUpdate P1 P2 P3 P4 *
** Synopsis: data=r[P3] N=P2
** Synopsis: data=r[P3@P2]
**
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** This opcode invokes the corresponding xUpdate method. P2 values