Merge pull request #31 from torpedro/views

Views
This commit is contained in:
Pedro Flemming 2017-03-08 20:34:42 +01:00 committed by GitHub
commit ad7a8c60dd
6 changed files with 100 additions and 18 deletions

View File

@ -10,4 +10,8 @@ flex_lexer.cpp: flex_lexer.l
flex flex_lexer.l
clean:
rm -f bison_parser.cpp flex_lexer.cpp bison_parser.h flex_lexer.h *.output
rm -f bison_parser.cpp flex_lexer.cpp bison_parser.h flex_lexer.h *.output
# Tests if the parser builds correctly and doesn't contain conflicts.
test:
! bison bison_parser.y -v 2>&1 | grep "conflict" >&2

View File

@ -343,6 +343,13 @@ create_statement:
$$->tableName = $4;
$$->columns = $6;
}
| CREATE VIEW opt_not_exists table_name opt_column_list AS select_statement {
$$ = new CreateStatement(CreateStatement::kView);
$$->ifNotExists = $3;
$$->tableName = $4;
$$->viewColumns = $5;
$$->select = $7;
}
;
opt_not_exists:
@ -380,6 +387,10 @@ drop_statement:
$$ = new DropStatement(DropStatement::kTable);
$$->name = $3;
}
| DROP VIEW table_name {
$$ = new DropStatement(DropStatement::kView);
$$->name = $3;
}
| DEALLOCATE PREPARE IDENTIFIER {
$$ = new DropStatement(DropStatement::kPreparedStatement);
$$->name = $3;

View File

@ -5,9 +5,12 @@
// Note: Implementations of constructors and destructors can be found in statements.cpp.
namespace hsql {
struct SelectStatement;
// Represents definition of a table column
struct ColumnDefinition {
enum DataType {
UNKNOWN,
TEXT,
INT,
DOUBLE
@ -26,7 +29,8 @@ namespace hsql {
struct CreateStatement : SQLStatement {
enum CreateType {
kTable,
kTableFromTbl // Hyrise file format
kTableFromTbl, // Hyrise file format
kView
};
CreateStatement(CreateType type);
@ -37,6 +41,8 @@ namespace hsql {
char* filePath; // default: NULL
char* tableName; // default: NULL
std::vector<ColumnDefinition*>* columns; // default: NULL
std::vector<char*>* viewColumns;
SelectStatement* select;
};
} // namespace hsql

View File

@ -29,11 +29,14 @@ namespace hsql {
ifNotExists(false),
filePath(NULL),
tableName(NULL),
columns(NULL) {};
columns(NULL),
viewColumns(NULL),
select(NULL) {};
CreateStatement::~CreateStatement() {
free(filePath);
free(tableName);
delete select;
if (columns != NULL) {
for (ColumnDefinition* def : *columns) {
@ -41,6 +44,13 @@ namespace hsql {
}
delete columns;
}
if (viewColumns != NULL) {
for (char* column : *viewColumns) {
free(column);
}
delete viewColumns;
}
}
// DeleteStatement

View File

@ -42,10 +42,10 @@ WHERE L_PARTKEY = P_PARTKEY AND L_SHIPDATE >= '1995-09-01' AND L_SHIPDATE < date
-- TPC_H Query 15.1 - Create View for Top Supplier Query
-- CREATE VIEW REVENUE0 (SUPPLIER_NO, TOTAL_REVENUE) AS
-- SELECT L_SUPPKEY, SUM(L_EXTENDEDPRICE*(1-L_DISCOUNT)) FROM LINEITEM
-- WHERE L_SHIPDATE >= '1996-01-01' AND L_SHIPDATE < dateadd(mm, 3, cast('1996-01-01' as datetime))
-- GROUP BY L_SUPPKEY;
CREATE VIEW REVENUE0 (SUPPLIER_NO, TOTAL_REVENUE) AS
SELECT L_SUPPKEY, SUM(L_EXTENDEDPRICE*(1-L_DISCOUNT)) FROM LINEITEM
WHERE L_SHIPDATE >= '1996-01-01' AND L_SHIPDATE < dateadd(mm, 3, cast('1996-01-01' as datetime))
GROUP BY L_SUPPKEY;
-- TPC_H Query 15.2 - Top Supplier
@ -55,5 +55,4 @@ WHERE S_SUPPKEY = SUPPLIER_NO AND TOTAL_REVENUE = (SELECT MAX(TOTAL_REVENUE) FRO
ORDER BY S_SUPPKEY;
-- TPC_H Query 15.3 - Drop View
-- DROP VIEW REVENUE0;
DROP VIEW REVENUE0;

View File

@ -1,21 +1,73 @@
#!/bin/bash
# Has to be executed from the root of the repository.
# Usually invoked by `make test`.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:./
# Colors
RED='\033[1;31m'
GREEN='\033[1;32m'
NC='\033[0m'
BOLD='\033[1;39m'
RET=0
SQL_TEST_RET=0
MEM_LEAK_RET=0
CONFLICT_RET=0
#################################################
# Running SQL parser tests.
printf "\n${GREEN}Running SQL parser tests...${NC}\n"
bin/sql_tests -f "test/valid_queries.sql"
RET=$?
SQL_TEST_RET=$?
if [ $RET -eq 0 ]; then
# Running memory leak checks.
echo ""
echo "Running memory leak checks..."
valgrind --leak-check=full --error-exitcode=1 --log-fd=3 \
./bin/sql_tests -f "test/valid_queries.sql" 3>&1 >/dev/null 2>/dev/null
RET=$?
if [ $SQL_TEST_RET -eq 0 ]; then
printf "${GREEN}SQL parser tests succeeded!${NC}\n"
else
RET=1
printf "${RED}SQL parser tests failed!${NC}\n"
fi
#################################################
# Running memory leak checks.
printf "\n${GREEN}Running memory leak checks...${NC}\n"
valgrind --leak-check=full --error-exitcode=200 --log-fd=3 \
./bin/sql_tests -f "test/valid_queries.sql" 3>&1 >/dev/null 2>/dev/null
if [ $MEM_LEAK_RET -ne 200 ]; then
printf "${GREEN}Memory leak check succeeded!${NC}\n"
else
MEM_LEAK_RET=1
RET=1
printf "${RED}Memory leak check failed!${NC}\n"
fi
#################################################
# Checking if the grammar is conflict free.
printf "\n${GREEN}Checking for conflicts in the grammer...${NC}\n"
printf "${RED}"
make -C src/parser/ test >>/dev/null
CONFLICT_RET=$?
if [ $CONFLICT_RET -eq 0 ]; then
printf "${GREEN}Conflict check succeeded!${NC}\n"
else
RET=1
printf "${RED}Conflict check failed!${NC}\n"
fi
# Print a summary of the test results.
printf "
----------------------------------
${BOLD}Summary:\n"
if [ $SQL_TEST_RET -eq 0 ]; then printf "SQL Tests: ${GREEN}Success${BOLD}\n";
else printf "SQL Tests: ${RED}Failure${BOLD}\n"; fi
if [ $MEM_LEAK_RET -eq 0 ]; then printf "Memory Leak Check: ${GREEN}Success${BOLD}\n";
else printf "Memory Leak Check: ${RED}Failure${BOLD}\n"; fi
if [ $CONFLICT_RET -eq 0 ]; then printf "Grammar Conflict Check: ${GREEN}Success${BOLD}\n";
else printf "Grammar Conflict Check: ${RED}Failure${BOLD}\n"; fi
if [ $RET -eq 0 ]; then printf "${GREEN}All tests passed!${NC}\n";
else printf "${RED}Some tests failed!${NC}\n"; fi
printf "${NC}----------------------------------\n"
exit $RET