internal override StringBuilder AsEsql(
StringBuilder builder,
bool isTopLevel,
int indentLevel)
{
StringUtil.IndentNewLine(builder, indentLevel);
builder.Append("SELECT ");
this.GenerateProjectionEsql(builder, (string)null, false, indentLevel, isTopLevel);
StringUtil.IndentNewLine(builder, indentLevel);
builder.Append("FROM ");
int num = 0;
foreach (CqlBlock child in this.Children)
{
if (num > 0)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append(OpCellTreeNode.OpToEsql(this.m_opType));
}
builder.Append(" (");
child.AsEsql(builder, false, indentLevel + 1);
builder.Append(") AS ").Append(child.CqlAlias);
if (num > 0)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append("ON ");
this.m_onClauses[num - 1].AsEsql(builder);
}
++num;
}
return(builder);
}
internal override StringBuilder AsEsql(StringBuilder builder, bool isTopLevel, int indentLevel)
{
// The SELECT part.
StringUtil.IndentNewLine(builder, indentLevel);
builder.Append("SELECT ");
GenerateProjectionEsql(
builder,
null,
/* There is no single input, so the blockAlias is null. ProjectedSlot objects will have to carry their own input block info:
* see QualifiedSlot and QualifiedCellIdBoolean for more info. */
false,
indentLevel,
isTopLevel);
StringUtil.IndentNewLine(builder, indentLevel);
// The FROM part by joining all the children using ON Clauses.
builder.Append("FROM ");
var i = 0;
foreach (var child in Children)
{
if (i > 0)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append(OpCellTreeNode.OpToEsql(m_opType));
}
builder.Append(" (");
child.AsEsql(builder, false, indentLevel + 1);
builder.Append(") AS ")
.Append(child.CqlAlias);
// The ON part.
if (i > 0)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append("ON ");
m_onClauses[i - 1].AsEsql(builder);
}
i++;
}
return(builder);
}
internal override StringBuilder AsEsql(
StringBuilder builder,
bool isTopLevel,
int indentLevel)
{
bool flag = true;
foreach (CqlBlock child in this.Children)
{
if (!flag)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append(OpCellTreeNode.OpToEsql(CellTreeOpType.Union));
}
flag = false;
builder.Append(" (");
child.AsEsql(builder, isTopLevel, indentLevel + 1);
builder.Append(')');
}
return(builder);
}
internal override StringBuilder AsEsql(StringBuilder builder, bool isTopLevel, int indentLevel)
{
Debug.Assert(this.Children.Count > 0, "UnionCqlBlock: Children collection must not be empty");
// Simply get the Cql versions of the children and add the union operator between them.
bool isFirst = true;
foreach (CqlBlock child in Children)
{
if (false == isFirst)
{
StringUtil.IndentNewLine(builder, indentLevel + 1);
builder.Append(OpCellTreeNode.OpToEsql(CellTreeOpType.Union));
}
isFirst = false;
builder.Append(" (");
child.AsEsql(builder, isTopLevel, indentLevel + 1);
builder.Append(')');
}
return(builder);
}
