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- 增加 Clickhouse Sample 采样子句；

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2881099 2022-09-18 21:12:11 +08:00
parent 9b264aa163
commit b0b7cb204c
2 changed files with 40 additions and 18 deletions
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21
Providers/FreeSql.Provider.ClickHouse/ClickHouseExtensions.cs
View File

@ -16,6 +16,9 @@ public static partial class FreeSqlClickHouseGlobalExtensions
public static string FormatClickHouse(this string that, params object[] args) => _clickHouseAdo.Addslashes(that, args);
static FreeSql.ClickHouse.ClickHouseAdo _clickHouseAdo = new FreeSql.ClickHouse.ClickHouseAdo();
/// <summary>
/// Clickhouse limit by
/// </summary>
public static ISelect<T> LimitBy<T>(this ISelect<T> that, Expression<Func<T, object>> selector, int limit, int offset = 0)
{
if (limit <= 0 && offset <= 0) return that;
@ -25,7 +28,7 @@ public static partial class FreeSqlClickHouseGlobalExtensions
try
{
s0p.InternalOrderBy(selector);
s0p._limitBy = $"limit {(offset > 0 ? $"{offset}, " : "")}{limit} by {s0p._orderby}";
s0p._limitBy = $"LIMIT {(offset > 0 ? $"{offset}, " : "")}{limit} BY {s0p._orderby}";
}
finally
{
@ -33,4 +36,20 @@ public static partial class FreeSqlClickHouseGlobalExtensions
}
return that;
}
/// <summary>
/// Clickhouse 采样子句
/// </summary>
public static ISelect<T> Sample<T>(this ISelect<T> that, decimal k, int n, decimal m)
{
var s0p = that as ClickHouseSelect<T>;
if (k > 0)
if (m > 0)
s0p._sample = $"SAMPLE {k} OFFSET {m}";
else
s0p._sample = $"SAMPLE {k}";
else if (n > 0)
s0p._sample = $"SAMPLE {k}";
return that;
}
}

37
Providers/FreeSql.Provider.ClickHouse/Curd/ClickHouseSelect.cs
View File

@ -12,9 +12,10 @@ namespace FreeSql.ClickHouse.Curd
class ClickHouseSelect<T1> : FreeSql.Internal.CommonProvider.Select1Provider<T1>
{
public string _limitBy = "";
public string _sample = "";
internal static string ToSqlStatic(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, Func<Type, string, string> _aliasRule, string _tosqlAppendContent, List<GlobalFilter.Item> _whereGlobalFilter, IFreeSql _orm,
string _limitBy)
string _limitBy = "", string _sample = "")
{
if (_orm.CodeFirst.IsAutoSyncStructure)
_orm.CodeFirst.SyncStructure(_tables.Select(a => a.Table.Type).ToArray());
@ -69,6 +70,8 @@ namespace FreeSql.ClickHouse.Curd
}
if (a < tbsfrom.Length - 1) sb.Append(", ");
}
if (string.IsNullOrEmpty(_sample) == false)
sb.Append(" \r\n").Append(_sample);
foreach (var tb in tbsjoin)
{
switch (tb.Type)
@ -110,7 +113,7 @@ namespace FreeSql.ClickHouse.Curd
if (string.IsNullOrEmpty(_limitBy) == false)
sb.Append(" \r\n").Append(_limitBy);
if (_skip > 0 || _limit > 0)
sb.Append(" \r\nlimit ").Append(Math.Max(0, _skip)).Append(",").Append(_limit > 0 ? _limit : -1);
sb.Append(" \r\nLIMIT ").Append(Math.Max(0, _skip)).Append(",").Append(_limit > 0 ? _limit : -1);
sbnav.Clear();
if (tbUnionsGt0) sb.Append(") ftb");
@ -140,77 +143,77 @@ namespace FreeSql.ClickHouse.Curd
class ClickHouseSelect<T1, T2> : FreeSql.Internal.CommonProvider.Select2Provider<T1, T2> where T2 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3> : FreeSql.Internal.CommonProvider.Select3Provider<T1, T2, T3> where T2 : class where T3 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4> : FreeSql.Internal.CommonProvider.Select4Provider<T1, T2, T3, T4> where T2 : class where T3 : class where T4 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5> : FreeSql.Internal.CommonProvider.Select5Provider<T1, T2, T3, T4, T5> where T2 : class where T3 : class where T4 : class where T5 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6> : FreeSql.Internal.CommonProvider.Select6Provider<T1, T2, T3, T4, T5, T6> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7> : FreeSql.Internal.CommonProvider.Select7Provider<T1, T2, T3, T4, T5, T6, T7> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8> : FreeSql.Internal.CommonProvider.Select8Provider<T1, T2, T3, T4, T5, T6, T7, T8> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> : FreeSql.Internal.CommonProvider.Select9Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> : FreeSql.Internal.CommonProvider.Select10Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> : FreeSql.Internal.CommonProvider.Select11Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> : FreeSql.Internal.CommonProvider.Select12Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class where T12 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> : FreeSql.Internal.CommonProvider.Select13Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class where T12 : class where T13 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> : FreeSql.Internal.CommonProvider.Select14Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class where T12 : class where T13 : class where T14 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> : FreeSql.Internal.CommonProvider.Select15Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class where T12 : class where T13 : class where T14 : class where T15 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
class ClickHouseSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> : FreeSql.Internal.CommonProvider.Select16Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class where T11 : class where T12 : class where T13 : class where T14 : class where T15 : class where T16 : class
{
public ClickHouseSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm, "");
public override string ToSql(string field = null) => ClickHouseSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _tosqlAppendContent, _whereGlobalFilter, _orm);
}
}